Solving for a Given Variable

Rewrite this formula and solve for the variable W. P = 2L + 2W

• W = P/2 - 2L

• W = P - 2L

• W = (2L - P) / 2

• W = (P - 2L) / 2

w=g+7
solve for g

• g=w/7

• g=w+7

• g=7w

• g=w-7

y=x-9
solve for x

• x=9-y

• x=9y

• x=y+9

• x=9/y

M=T-R
solve for T

• T=M+R

• T=M-R

• T=-R-M

• T=RM

What do you do for the following problem?

• Simplify (distribute & combine like terms)

• Solve for x

• Solve for y

Solve for y

• A

• B

• C

• D

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 to ____________.

• divide each term by 4

• divide each term by -4

• add 4 to each side

• subtract 4 from each side

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

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

2d-1=s
solve for d

• d=2s+1

• d=2s-1

• d=(s+1)/2

• d=(s-1)/2