7(X+2.15)=56,用方程解答谢

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7(X+2.15)=56,用方程解答谢7(X+2.15)=56,用方程解答谢7(X+2.15)=56,用方程解答谢7(X+2.15)=56x+2.15=8x=8-2.15x=5.857(x+2.15)

7(X+2.15)=56,用方程解答谢
7(X+2.15)=56,用方程解答谢

7(X+2.15)=56,用方程解答谢
7(X+2.15)=56
x+2.15=8
x=8-2.15
x=5.85


7(x+2.15)=56
7x+(2.15*7)=56
7x+15.05=56
7x=56-15.05
7x=49.95
x=7.15