First Steps for Solving Equations

Which would NOT be an acceptable next step in solving this equation? −4x − 7 = 3x + 2

• Subtract 2 from both sides

• Combine -4x and 3x to make -1x

• Subtract 3x from both sides

• Add 4x to both sides

What is the first step in solving this equation 8x - 6 = 10

• Add 6

• Subtract 8

• Divide by 8

• Subtract 6

2x + 1 = 6
When solving, first UNDO add/sub. What would the first step be in solving this equation?

• Divide by 2

• Subtract 1

• Subtract 6

• Times 2

-6 + x/4 = 11
When solving, first UNDO add/sub. What would the first step be in solving this equation?

• Divide by 4

• Add 6

• Subtract 11

• Times 4

Look at the work. What SHOULD have been the first step?

• It's correct!

• Subtract 1 on both sides

• Add 5 on both sides

• Divide by 3 on both sides

How do you know when an equation has been solved and your work is done?

• When you get a whole number

• After you add or subtract

• When x is by itself on one side of the equal sign

• When there are no more variables

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

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

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

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

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

After combining like terms in the following equation, what would be the result: 64x + 48 = -8x - 22 + 2x

• 64x + 48 = -10x -22

• 112 = -28x

• 64x + 48 = -6x - 22

What is the solution to the equation: 70x = -70

• 1

• 70

• -1

• -70

What is the first step when solving 15 = 2a + 7 ?

• divide both sides by 2

• subtract 7 on both sides

• add 7 on both sides

• subtract 15 on both sides