Solve for x
x=20
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3.2x-4=15+1.2x+21
Combine 3x and 0.2x to get 3.2x.
3.2x-4=36+1.2x
Add 15 and 21 to get 36.
3.2x-4-1.2x=36
Subtract 1.2x from both sides.
2x-4=36
Combine 3.2x and -1.2x to get 2x.
2x=36+4
Add 4 to both sides.
2x=40
Add 36 and 4 to get 40.
x=\frac{40}{2}
Divide both sides by 2.
x=20
Divide 40 by 2 to get 20.
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