Question 65060
5x-7=2x+8
5x-7+7=2x+8+7
5x=2x+15
5x-2x=2x-2x+15
3x=15
3x/3=15/3
x=5
.
checking that (x=5):
5x-7=2x+8
5(5)-7=2(5)+8
25-7=10+8
18=18 [checks out]