(4.5+X)X3.6/2=18 5X-5=3X+11

问题描述:

(4.5+X)X3.6/2=18 5X-5=3X+11

(4.5+X)X3.6/2=18
4.5+x=18x2/3.6
4.5+x=10
x=10-4.5
x=5.5
5X-5=3X+11
5x-3x=5+11
2x=16
x=8