42-5x=12方程怎么解
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42-5x=12方程怎么解
42-5x=12方程怎么解
42-5x=12方程怎么解
42 - 5x = 12
-5x = 12 - 42
-5x = -30
x = (-30) ÷ (-5)
x = 6
42-5x=12方程怎么解
42-5x=12方程怎么解
42-5x=12方程怎么解
42 - 5x = 12
-5x = 12 - 42
-5x = -30
x = (-30) ÷ (-5)
x = 6