Solving Equations by Balancing

5v+5=2(2v)

• 2

• -5

• 0

• -2/5

3x=8-x

• 2

• 6

• 6/4

• 1/4

Solve for x

• 35

• 3.5

• 0.35

• -35

To solve 15 = -3x, what do you do to both sides?

• Divide 3 from both sides

• Divide -3 from both sides

• Multiply by 3 on both sides

• Multiply by -3 on both sides

To solve 16 = x - 4, what do you do to both sides?

• add 4 to both sides

• subtract 4 from both sides

• add 16 to both sides

• subtract 16 from both sides

To solve 10x = 45, what do you do to both sides?

• Subtract 10 from both sides

• Divide 10 from both sides

• Subtract 45 from both sides

• Divide 45 from both sides

When solving equations, mathematicians want to get the variable (x) all by itself.

• True

• False

If you subtract 2 from one side, you have to...

• add 2 to the other side

• subtract 2 from the other side

• multiply 2 on the other side

• divide 2 from the other side

If you multiply one side by negative 11, you have to multiply the other side by negative 11.

• True

• False

If you add -6 to one side, what do you do to the other side?

• Subtract -6

• Subtract  6

• Add -6

• Subtract -6