Solve With Variables on Both Sides

9+2a=-3-4a

• a = -2

• a = 2

• a = 5

• a = -1

2a+4=7+a

• a = 1

• a = -3

• a = -1

• a = 3

2+14a=-8+9a

• a = 2

• a = -2

• a = ⁶⁄₅

• a = 1

-8-5a=12-9a

• a = 5

• a = 1

• a = -2

• a = -1

Mathematical Equivalence

ON

3x + 10 + 2x = 2 (x + 8)

5x + 10 = 2x + 16

What is the next step? Drag the correct part under the equation. Be sure to put the one labeled left on the left.

d

a

/2x (right side)

/2x (left side)

-2x (left side)

-2x (right side)

Mathematical Equivalence

ON

Solve the equation:
3(x - 1) = 2x + 9

• x = 12

• no solution

• x = 10

• x = 6

Solve the equation for the variable

Solve for x. 
5x - 10 = x + 6

• No solution

• x = 1

• x = 2

• x = 4