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15-x=30.7x+6x5=72
2个回答
相关问题
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1) 6X-7=6X+72) X+5 3X+7 5X-3----- - ------ = ------4 16 123)
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7.6x-14x等于15.5 是7.6x-1.4x等于15.5
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1/5(x+15)=1/2-1/3(x-7) 6(X+15)=15-10(X-7) 6X+90=15-10X+70 6X
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(3.6+x)*60%=7.2 x+30%x=90%x+30 45%+(9.6-x)=5.7
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解方程.5X-15=30 25*4+5X=120 7*8-6X=38 5X-3.6=2.4 2X/5.6=1.2
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解下列方程.7(5x-3)=10.5 6.5x-x=7.7 4x+x=15
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5X+3Y=7/30怎么解X+Y=1/15 5X+3Y=7/30怎么解
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3x+7x=59.2 15.2-x=5.6 x-12.56=15.7 (x-8)÷
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0.5x+30=15.5x 3.2x-12.6=1.2x