移项解方程(1)x+4=-3 (2)2x=3x+1/4 (3)8-4.5x=7.5x-4 (4)-4x+4=-8x-8

问题描述:

移项解方程(1)x+4=-3 (2)2x=3x+1/4 (3)8-4.5x=7.5x-4 (4)-4x+4=-8x-8


x+4=-3
x=-4-3
x=-7
2x=3x+1/4
2x-3x=1/4
-x=1/4
x=-1/4
8-4.5x=7.5x-4
-7.5x-4.5x=-8-4
-12x=-12
x=1
-4x+4=-8x-8
8x-4x=-8-4
4x=-12
x=-3