3X+5X=48 14X-8X=12 6*5+2X=44

问题描述:

3X+5X=48 14X-8X=12 6*5+2X=44

1.x=6
2.x=2
3.x=7

(1)3X+5X=48
8x=48
x=48/8
x=6
(2)14X-8X=12
6x=12
x=12/6
x=2
(3) 6*5+2X=44
30+2x=44
2x=44-30
2x=14
x=14/2
x=7