X=3(X-20)-4怎么解

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X=3(X-20)-4怎么解X=3(X-20)-4怎么解X=3(X-20)-4怎么解x=3(x-20)-4x=3x-60-4x=3x-64x-3x=-64-2x=-64x=32

X=3(X-20)-4怎么解
X=3(X-20)-4怎么解

X=3(X-20)-4怎么解
x=3(x-20)-4
x=3x-60-4
x=3x-64
x-3x=-64
-2x=-64
x=32