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3x+7x=59.215.2-x=5.6x-12.56=15.7(x-8)÷3x+7x=59.215.2-x=5.6x-12.56=15.7(x-8)÷3=6.57(x+3.7)39.2

题目详情
3x+7x=59.2 15.2-x=5.6 x-12.56=15.7 (x-8)÷
3x+7x=59.2
15.2-x=5.6
x-12.56=15.7
(x-8)÷3=6.5
7(x+3.7)39.2
▼优质解答
答案和解析
10x=59.2
x=59.2/10
x=5.92
x=15.2—5.6
x=9.6
x=15.7+12.56
x=28.26
{x_8)=6.5*3
(x-8)=19.5
x=19.5+8
x=27.5