解方程3(4x-1)+5(3x+2)=7(2x-1)+1
问题描述:
解方程3(4x-1)+5(3x+2)=7(2x-1)+1
答
3(4x-1)+5(3x+2)=7(2x-1)+1
12x-3+15x+10=14x-7+1
12x+15x+7=14x-6
27x+7=14x-6
27x-14x=-6-7
13x=-13
x=-1