5×(X+20 ) =32 解方程5×(X+20 ) =32
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5×(X+20 ) =32 解方程5×(X+20 ) =32
5×(X+20 ) =32 解方程
5×(X+20 ) =32
5×(X+20 ) =32 解方程5×(X+20 ) =32
5X+100=32
5X=32-100
5X=-68
X=-68/5
X=-13.6
5X+100=32
5X=32-100
5X=-68
X=-13.6
5X+100=30 5X=-70 X=-14
5*(X+20)=32 X+20 =32/5(6.4) X =6.4-20 X =-13.6