4x-3x+5.6x等于多少

台呼试47964x - 3x(20 - x)=5x - 7x(20 - x)的解法 -
蔺荣莉18899482666 ______[答案] 4x-60x+3x*x=5x-140x+7x*x 4x*x-79x=0 x(4x-79)=0 x=0或x=79/4

台呼试47964x - 3x8=36解方程 -
蔺荣莉18899482666 ______ 4x-3x8=364x=36+244x=60 x=15

台呼试47964x - 3+x=57怎么解 -
蔺荣莉18899482666 ______ 4x-3+x=57 4x+x=57+3 5x=60 x=60/5 x=12

台呼试47964x - 3(x - 2)=3x+6怎么做 -
蔺荣莉18899482666 ______[答案] 4x-3(x-2)=3x+6 4x-3x+6=3x+6 2x=6-6 2x=0 x=0

台呼试47965.6x=17.28 - 4x x等于几3(x+2)=4(x+1) x等于?81x - 342=76(x - 2) x等于?2(x - 4)=3(x - 12) x等于?9.1 - 3x=4x+7 x等于?5(x+2)=3(x+4) x等于?4(x - 1.2)=1.5x+5.2 x等... -
蔺荣莉18899482666 ______[答案] 5.6x=17.28-4x 9.6x=17.28 x=1.8 3(x+2)=4(x+1) 3x+6=4x+4 x=2 81x-342=76(x-2) 81x-342=76x-152 5x=190 x=38 2(x-4)=3(x-12) 2x-8=3x-36 x=28 9.1-3x=4x+7 7x=2.1 x=0.3 5(x+2)=3(x+4) 5x+10=3x+12 2x=2 x=1 4(x-1.2)=1.5x+5.2 4x-4.8=1.5x+5.2 2.5x=10...

台呼试47964x - 5=3x - 6 - 2 -
蔺荣莉18899482666 ______ 4x-5=3x-84x-3x=5-8 x=-3

台呼试4796解方程 式子 6 - 2x+3x=3x - 4x+3x+18 6 - x+3x=2x - 5x+1 2x - 1=5x - 36 - 2x+3x=3x - 4x+3x+18 6 - x+3x=2x - 5x+12x - 1=5x - 3 -
蔺荣莉18899482666 ______[答案] x=-12 x=-1 x=2/3

台呼试4796解方程:5x - (3x+6)=2 -
蔺荣莉18899482666 ______ 5x -()=2 解: 3x+6=5x-2 3x=5x-2-6 3x=5x-8 5x-3x=8 2x=8 x=4 验算:20-(12+6) =20-18 =2

台呼试4796x取何值 式子4x - 8与3x+6的值相等 -
蔺荣莉18899482666 ______ 4x-8=3x+64x-3x=6+8 x=14

台呼试4796解方程4 - 3x(x - 6)=2 - (3+2x) -
蔺荣莉18899482666 ______ 4-3x(x-6)=2-(3+2x)4-3x+18=2-3-2x22-3x=-1-2x-3x+2x=-1-22-x=-23 x=23