Solving Equations Difficult

Solve for x: 3(x-2)= -9

• 1

• -1

• -7/3

• 3/7

When equations have variables on both sides such as 3x+6=5x-2, you should move the variables to one side of the equation to simplify. What might your first step look like?

• 8x+6=-2

• 2x+6=2

• 6=2x-2

• 6=8x-2

Solve 6 - x = -4

• x=9

• x = -9

• x = 10

• x = -10

When solving equations, sometimes you have to simplify the equation first. When solving 3x + 2 + x - 6 = 25, what might your first step look like?

• 3x + 8 = 25

• 3x - 4 = 25

• 4x + 8 = 25

• 4x - 4 = 25

When you solve 4(x+2) = 22, you must simplify the equation first. What would the first step look like?

• 4x + 8 = 22

• 4x + 2 = 22

• x + 8 = 22

• x + 2 = 22

Solve for x: 3x + 4 = 5 ( x - 8 )

• 1.5

• 6

• 11

• 22

Which of the following would be an incorrect first step? 1/4 x + 9 = 3/4 x - 2 NOTE: Only one is incorrect though others might not be what WE would do but still could work.

• subtract 1/4x from both sides

• subtract 3/4x from both sides

• multiply everything through by 4

• add 1/4x and 3/4x

When you solve 9 - (x + 5) = 6x + 3, the first step would look like which of the following?

• 9 - x - 5 = 6x + 3

• 9 - 5x = 6x + 3

• 9 - x + 5 = 9x

• 9 - ( x + 5 ) = 6x + 3

Solve for x: 2(6+2x) = 8x

• x=1

• x=2

• x=3

• x=6

One way to solve this equation

2/7 x + 3 = 8/7 x - 8

is to first

• multiply both sides through by 2

• multiply both sides through by 8

• multiply both sides through by 7

• add x to both sides