Question

I don’t know how to solve it if you may please help

Answer 1

step 1: expand so u will get
9/10x + 7.2 = 18

step 2: then u solve for x
9/10x = 18-7.2
9/10x = 10.8
x = 10.8 divide by 9/10
x = 12

x=2 is the answer