Solving for a Variable in a Formula

Solve for w.

• F

• G

• H

• I

Solve for y:
8x + 4y= 16

• y = -8x + 16

• y = 2x -4

• y = -2x + 4

• y = -8x + 12

ax+r=7
solve for r

• r=7/ax

• r=7-ax

• r=7+ax

• r=7ax

Solve for a.

• a = pw

• a = p/w

• a = w/p

• a = w + p

Solve for y

• A

• B

• C

• D

Solve -4 = 5x + 6

Mathematical Equivalence

ON

After subtracting 2x from each side, the resulting equation is shown below:

2x + 4y = 8

4y = -2x + 8

The final step to solve for y would be ____________.

• divide each term by 4

• divide each term by -4

• add 4 to each side

• subtract 4 from each side

What do you do for the following problem?

• Simplify (distribute & combine like terms)

• Solve for x

• Solve for y

After dividing by 4 on each side, 2x + 4y = 8 4y = -2x + 8 4 4 4The final equation solved for for y would be ____________.

• y=-2x+2

• y=-½ x +2

• y=-2x+8

• y=-½ x-8

Solve for X

X =

• 1

• -1

• 2

• -3