2*(X+0.5)+3*(X-0.4)=5.6 过程详细点

2024-11-26 08:16:01
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回答1:

2*(X+0.5)+3*(X-0.4)=5.6
2x+1+3x-1.2=5.6
5x-0.2=5.6
5x=5.6+0.2
5x=5.8
x=5.8÷5
x=1.16