解方程:2(3x-7.5)=4x+3 2x+4(2x-5)=40 3(4x-12)=10+2x
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/16 15:27:46
解方程:2(3x-7.5)=4x+3 2x+4(2x-5)=40 3(4x-12)=10+2x
![解方程:2(3x-7.5)=4x+3 2x+4(2x-5)=40 3(4x-12)=10+2x](/uploads/image/z/3226489-25-9.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A2%283x-7.5%29%3D4x%2B3+2x%2B4%282x-5%29%3D40+3%284x-12%29%3D10%2B2x)
2(3x-7.5)=4x+3
6x-15=4x+3
6x-4x=15+3
2x=18
x=9
2x+4(2x-5)=40
2x+8x-20=40
10x=40+20
10x=60
x=6
3(4x-12)=10+2x
12x-36=10+2x
12x-2x=36+10
10x=46
x=4.6
6x-15=4x+3
6x-4x=15+3
2x=18
x=9
2x+4(2x-5)=40
2x+8x-20=40
10x=40+20
10x=60
x=6
3(4x-12)=10+2x
12x-36=10+2x
12x-2x=36+10
10x=46
x=4.6
解方程 x(2x-4)+3x(x-1)=5x(x-3)+8
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
方程(x-1/x-2)-(x-3/x-4)=(x-2/x-3)-(x-4/x-5)解为x=7/2,(1/x-7)-(1/
解方程x(2x-3)+3x+3x(x-2)=5x(x-4)+11
解方程 x^2(3x+5)+5=x(-x^2+4x^2+5x)+x
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
解分式方程:x-3/x-1-x-4/x-2=x-5/x-3-x-6