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8x-32=4x-20
Use the distributive property to multiply 8 by x-4.
8x-32-4x=-20
Subtract 4x from both sides.
4x-32=-20
Combine 8x and -4x to get 4x.
4x=-20+32
Add 32 to both sides.
4x=12
Add -20 and 32 to get 12.
x=\frac{12}{4}
Divide both sides by 4.
x=3
Divide 12 by 4 to get 3.