7x+5x+3(10-2x)=48 急
3个回答
7x+5x+3(10-2x)=48
7x+5x+30-6x=48
6x=18
x=3
相关问题
解方程.(1)12X-9X=8.7(2)6X+18=48(3)3(X+2.1)=10.5(4)X+4.8=7.2.
10X-3=9 6X-7=4X-5 1/2X-6=3/4X 急 HELP ME
21-x/2+x/3-2x/5=x x+2/3+x=10-2x/7 9-3x-2/5=7-3x/6
(3.5x-7)\6=8-4x 48-(7.5-x)*4=9x
7/9x-3/5x+8=48
解方程:X+2/7X=3/4,X-1/5X=3/10,2X+7X=9/10
8x-6=3-x -7x+4=2x-5 10x-6=7x+12 1-5/2x=2x+10
3(7.7-2X)=5(10.5-4x)
10-(7-5x)等于2x+(5-3x)
3x+5=2x.2/3x+1=-2.7x-6=5x+10.