Answer: x = 75
Step-by-step explanation:
The expression we have is:

to solve for x.
Step 1: Use the distributive property (multiply the numbers outside the parenthesis by the numbers inside the parenthesis)

We can simplify 18/3 to 6:

Step 2: Move all of the terms that contain x to the left and all of the independent terms to the right. (Note* when we move a term to the opposite side of the equation it does that with the opposite operation in this case opposite sign)

Step 3: Combine like terms

step 4: Multiply both sides of the equation by 3

Answer: x=75