Math 8 Solving Equations

Which equation represents the statement: "one plus five times a number is nine"

• n+5=9

• n-5=9

• 5n-1=9

• 5n+1=9

Solve: 2y-6 = 38

• 41

• 22

• 16

• -6

Tags

CCSS.7.EE.B.4A

Solve: y-17=82

• 116

• 99

• 65

• -99

In the equation: 3x + 4 = 7, the first operation you perform is:

• divide by 3 (to both sides)

• multiply by 3 (to both sides)

• subtract 4 (to both sides)

• add 4 (to both sides)

The phrase "9 times a number, increased by 12, equals 15" can be modelled by which equation?

• $\frac{n}{9}$ + 12 = 15

• $\frac{n}{9}$ - 12 = 15

• 9n+12=15

• 9n - 12 = 15

What is the solution to the equation: 2(x+8) = 18

• 1

• 5

• 17

• 22

What is the solution to the equation: 10(x-10) = 10

• 2

• 9

• -9

• 11

Solve: -5(x-10) = 5

• -3

• -35

• -11

• -1

What is the firsts step to solve this equation: -11 - 3x = 44

• Add 3 to both sides

• Add 11 to both sides

• Subtract 11 from both sides

• Divide 3 on both sides

Tags

CCSS.7.EE.B.4A

The steps in solving 5b - 6 = 24 are:

• Add 6 to both sides and divide both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

Tags

CCSS.7.EE.B.4A