Answer:
x=7.5
Step-by-step explanation:
step 1: do distribute property to the equation.Multiply 3 by everything inside the parenthesis
3(x+4.5)=36
3x+13.5=36
step 2: subtract 13.5 by it self to cancel out and by 36
3x+13.5=36
-13.5 -13.5
--------------------
3x=22.5
step 3: divide by 3
3x=22.5
x=7.5
step 4:Substitue x into the equation
3(7.5+4.5)=36
3(12)=36
