您的位置: 首页 > 作业答案 > 其他 > 解方程:(x+10)+(x-15)=280-x x+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(...解方程:(x+10)+(x-15)=280-xx+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7)13x-4(2x+5)=17(x-2)-4(2x-1)

解方程:(x+10)+(x-15)=280-x x+15=3(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(...解方程:(x+10)+(x-15)=280-xx+15=3(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7)13x-4(2x+5)=17(x-2)-4(2x-1)

分类: 作业答案 • 2022-08-16 00:27:42

问题描述：

解方程:(x+10)+(x-15)=280-x x+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(...
解方程:
(x+10)+(x-15)=280-x
x+15=3*(109-x)
5(3x-1.4)=2(6x-0.5)
3(x+0.9)=5(x-1.7)
13x-4(2x+5)=17(x-2)-4(2x-1)

答

x+10+x-15=280-x 2x-5=280-x 3x=285 x=95x+15=327-3x 4x=312 x=7815x-7=12x-1 3x=6 x=23x+2.7=5x-8.5 11.2=2x x=5.613x-...

解方程:(x+10)+(x-15)=280-x x+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(...解方程:(x+10)+(x-15)=280-xx+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7)13x-4(2x+5)=17(x-2)-4(2x-1)

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解方程:(x+10)+(x-15)=280-x x+15=3(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(...解方程:(x+10)+(x-15)=280-xx+15=3(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7)13x-4(2x+5)=17(x-2)-4(2x-1)