Subtract 2x from both sides to get
5x = 5 + 13
now simplify to
5x = 18
finally, divide by 5 on both sides to get 5 by itself
x = 3.6
or in ratio form
x = 3 and 3/5
2x + 5x = 2x + 5 +13
2x - 2x + 5x= 18
x = 18/5
18/5 is your answer
