3/4x-0.4=1/2x+0.3的解
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3/4x-04=1/2x +0.33/4x1/2x =0.4+0.31/4x=0.7 X=0.7÷1/4X=0.7×4X=2.8
咨询记录 · 回答于2022-11-19
3/4x-0.4=1/2x+0.3的解
3/4x-04=1/2x +0.33/4x1/2x =0.4+0.31/4x=0.7 X=0.7÷1/4X=0.7×4X=2.8
3y+12/4=2-5y-7/5的解
3y+12/4=2-5y-7/5的解
3y+12/4=2-5y-7/53y+5y=2-7/5-38y=-12/5y=-12/5÷8y=-3/10