0.39(x-2)=2-0.7(x-2) 方程解法0.39改成0.3

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0.39(x-2)=2-0.7(x-2)方程解法0.39改成0.30.39(x-2)=2-0.7(x-2)方程解法0.39改成0.30.39(x-2)=2-0.7(x-2)方程解法0.39改成0.30

0.39(x-2)=2-0.7(x-2) 方程解法0.39改成0.3
0.39(x-2)=2-0.7(x-2) 方程解法
0.39改成0.3

0.39(x-2)=2-0.7(x-2) 方程解法0.39改成0.3
0.3(x-2)=2-0.7(x-2)
(0.3+0.7)(x-2)=2
x-2=2
x=4

0.3(x-2)=2-0.7(x-2)
0.3x-0.6=2-0.7x+1.4
0.3x-0.7x=2+1.4+0.6
-0.4x=4
x=4÷(-0.4)
x=-10