Solve for b
b=4\left(x+1\right)
Solve for x
x=\frac{b-4}{4}
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b-4x+8=12
Use the distributive property to multiply -4 by x-2.
b+8=12+4x
Add 4x to both sides.
b=12+4x-8
Subtract 8 from both sides.
b=4+4x
Subtract 8 from 12 to get 4.
b-4x+8=12
Use the distributive property to multiply -4 by x-2.
-4x+8=12-b
Subtract b from both sides.
-4x=12-b-8
Subtract 8 from both sides.
-4x=4-b
Subtract 8 from 12 to get 4.
\frac{-4x}{-4}=\frac{4-b}{-4}
Divide both sides by -4.
x=\frac{4-b}{-4}
Dividing by -4 undoes the multiplication by -4.
x=\frac{b}{4}-1
Divide 4-b by -4.
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