4(2x-1)-(10x+1)=3(2x+1)-12

问题描述:

4(2x-1)-(10x+1)=3(2x+1)-12

8x-4-10x-1=6x+3-12
8x=10
x=1.25

X=1/2

4(2x-1)-(10x+1)=3(2x+1)-12
8x-4-10x-1=6x+3-12
-8x=-4
x=1/2

1/2

-2x-5=6x-9 移项得8x=4 x=1/2

4(2x-1)-(10x+1)=3(2x+1)-12
8x-4-10x-1=6x+3-12
-8x=-4
x=1/2

4(2x-1)-(10x+1)=3(2x+1)-12
8x-4-10x-1=6x+3-12
6x+10x-8x=12-3-4-1
8x=4
x=1/2

4(2x-1)-(10x+1)=3(2x+1)-12
8x-4-10x-1=6x+3-12
8x-12x-6x=3-12+4+1
-10x=-4
x=-4/(-10)
x=2/5