Equations

Solve

x+8=-15

• x=23

• x=-32

• x=32

• x=-23

Answer explanation

The question asks to solve the equation x + 8 = -15. By subtracting 8 on both sides, we can isolate x. This gives us the equation x = -15 - 8. So, the correct answer is x = -23 which is the answer mentioned in the options.

x/9=-5

• x=-45

• x=45

• x=54

• x=-54

Answer explanation

The given question is a simple algebraic equation x/9=-5. To find the value of x, we need to perform cross multiplication. When we multiply both sides of the equation by 9, we get x=(-5)*9, which simplifies to x=-45. Hence, the answer is x=-45.

Write an expression for the following scenario.

Thomas is six inches taller than his brother Rick. If Thomas is 48 inches tall how tall is Rick?

• 48=x+6
• 56=x+6

• -48=x+6

• -56=x-6

Answer explanation

We are given that Thomas is 6 inches taller than Rick, and Thomas's height is 48 inches. We can model this information into an equation where Rick's height is represented by x. The equation becomes 48 = x + 6. Solving this equation, we find that Rick is 42 inches tall.

Write an equation for the following scenario.

Hue drank 15 ounces of water after running a race. There were 20 ounces left. How much water was originally in the container?

• x-15=-20

• x+15=20

• x-15=20

• x-15=20

Answer explanation

The question states that Hue drank 15 ounces of water and there were 20 ounces left. It's asking for the original amount of water in the container. This can be solved using the given equation x - 15 ounces (drank) = 20 ounces (left). Solving this equation for x gives us the initial amount of water which Hue had before drinking.

Solve for x

6+1.5x=-12

• 12

• -12

• 24

• -24

Answer explanation

The question asks to solve for x in the equation 6+1.5x=-12. To find the value of x, you would first subtract 6 from both sides to get 1.5x = -18. Then, you would divide both sides by 1.5 to solve for x, which gives you x = -12. Therefore, the correct answer is -12.

Solve for x

42=-6+3x

• 26

• -16

• -26

• 16

Answer explanation

The question is a linear equation 42 = -6 + 3x. To find the value of x, we can first add 6 to both sides of the equation to get 48 = 3x. Then, divide both sides by 3 to solve for x. The result is x = 16, which is the correct answer.

Solve for x

3/4x + 8=41

Answer explanation

First, isolate the term with x in the equation. Subtract 8 from both sides, giving 3/4x = 33. Then, divide both sides by 3/4, or multiply by its reciprocal 4/3, to solve for x. The solution to the question is x = 44.

Solve for x

-7x=63

• x=9

• x=8

• x=-9

• x=-8

Answer explanation

To solve the equation -7x = 63 for x, we need to isolate x. This can be done by dividing both sides of the equation by -7. Doing so, we get x = 63 / -7, which simplifies to x = -9. Thus, the solution of the equation is x = -9, which is the provided option.

Solve for x

-8x-9=-21

• x=-3.75

• x=1.5

• x=3.75

• x=-1.5

Answer explanation

The given question is -8x-9=-21. To find the value of x, we first add 9 to both sides of the equation which gives us -8x = -12. Then, we divide both sides by -8 to solve for x. The solution is x = 1.5, which is the correct option provided.

Solve for x

5x+9=17

• 2.7

• 2.6

• 1.6

• 1.7

Answer explanation

The correct answer is 1.6. To solve the equation 5x+9=17, you first subtract 9 from both sides which gives 5x=8. Then, divide both sides by 5, which gives x=1.6. Hence, the solution to this question is 1.6.