解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)
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![解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)](/uploads/image/z/581653-37-3.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A7x-8%3D5x%2B2+2x-%EF%BC%885x-3%EF%BC%89%3D3x-4+4%EF%BC%88x%2B1%EF%BC%89-2%EF%BC%88x-3%EF%BC%89%3D18x-1%3D4%E5%88%86%E4%B9%8B1%EF%BC%882x-1%EF%BC%89+3x%2B2%EF%BC%88100-x%EF%BC%89%3D300+4x-3%EF%BC%8820-x%EF%BC%89%3D6x-7%EF%BC%8811-x%EF%BC%89)
解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)
解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18
x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)
解方程:7x-8=5x+2 2x-(5x-3)=3x-4 4(x+1)-2(x-3)=18x-1=4分之1(2x-1) 3x+2(100-x)=300 4x-3(20-x)=6x-7(11-x)
7x-8=5x+2 x=5
2x-(5x-3)=3x-4 x=7/6
4(x+1)-2(x-3)=18 x=4
x-1=4分之1(2x-1) x=3/2
3x+2(100-x)=300 x=100
4x-3(20-x)=6x-7(11-x) x=17/6
这是、、、、、、、、、、、小学的吗、、、、、、、
3/2,100
7x-8=5x+2 7x-5x=8+2 2x=10 x=5
2x-(5x-3)=3x-4 .....................................x=6/7
4(x+1-2(x-3)=18 ..........................x=4
x-1=4/1(2x-1)................
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7x-8=5x+2 7x-5x=8+2 2x=10 x=5
2x-(5x-3)=3x-4 .....................................x=6/7
4(x+1-2(x-3)=18 ..........................x=4
x-1=4/1(2x-1)....................................x=2/3
3x+2(100-x)=300............................x=100
4x-3(20-x)=6x-7(11-x)......................x=17/6
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