Solve Equations practice review

Solve the equation: x + 5 = 12

• x = 3

• x = 15

• x = 10

• x = 7

Answer explanation

To solve the equation x + 5 = 12, subtract 5 from both sides. This gives x = 7. Therefore, the correct answer is x = 7.

Abigail, Benjamin, and Oliver were playing a game. Abigail scored 8 points, but then she lost some points and ended up with 3. If x represents the points she lost, what is the value of x?

• 7

• 2

• 10

• 5

Answer explanation

To find the value of x, subtract 3 from both sides of the equation. This gives 8 - 3 = x. Therefore, x = 5. The correct choice is 5.

Avery, Lily, and Abigail are having a math race! Avery quickly shouts out: 'Hey, if 4y equals 20, what's the value of y?' Can you help them figure it out?

• y = 10

• y = 5

• y = 8

• y = 3

Answer explanation

The solution to the equation 4y = 20 is y = 5. This is the correct choice because when we divide both sides of the equation by 4, we get y = 5.

Noah, Mia, and Liam are on a treasure hunt. They found a clue that says '15 = 3n'. If 'n' represents the number of steps they need to take to reach the treasure, how many steps should they take?

• n = 5

• n = 7

• n = 10

• n = 3

Answer explanation

The correct answer is n = 5 because when we divide both sides of the equation 15 = 3n by 3, we get n = 5.

If 2p = 16, what is the value of p?

• 4

• 12

• 6

• 8

Answer explanation

To find the value of p, divide both sides of the equation 2p = 16 by 2. This gives p = 8. Therefore, the correct answer is 8.

Kai, Zoe, and Henry are playing a game of treasure hunt. They found a clue that says '7x = 35'. If x represents the number of steps they need to take to reach the treasure, how many steps should they take?

• 8

• 5

• 10

• 3

Answer explanation

To find the value of x, divide both sides of the equation by 7. So, x = 35/7 = 5. Therefore, the correct choice is 5.

Find the solution to the equation: 12 = 4 + 2m

• m = 6

• m = 2

• m = 4

• m = 8

Answer explanation

To find the solution, isolate the variable by subtracting 4 from both sides. This gives 2m = 8. Divide both sides by 2 to get m = 4. Therefore, the correct choice is m = 4.

Michael, Mason, and Aria are playing a game. Michael says, 'I'm thinking of a number. When you multiply it by 3, you get 9.' What is the number Michael is thinking of?

• k = 3

• k = 2

• k = 6

• k = 5

Answer explanation

To solve the equation 9 = 3k, divide both sides by 3. This gives k = 3. Therefore, the correct choice is k = 3.

If 24 = 6n, what is the value of n?

• 4

• 10

• 8

• 6

Answer explanation

The value of n can be found by dividing 24 by 6, which equals 4. Therefore, the correct choice is 4.

Scarlett, Olivia, and Rohan are having a race. Scarlett is 5 times as fast as Rohan. If Rohan runs at a speed of 25 units, how fast is Scarlett running?

• t = 3

• t = 5

• t = 10

• t = 2

Answer explanation

The solution to the equation 5t = 25 is t = 5. This is the correct choice because when we divide both sides of the equation by 5, we get t = 5.