Question

Solve for x
Working must be included for answer to count.
3x + 5x = 16

Answer 1

x = 2

Explanation:

Step 1: Add the like terms 3x and 5x on the left-hand side of the equation:

3x + 5x = 16

8x = 16

Step 2: Divide both sides by 8 to solve for x:

(8x = 16) / 8

x = 2

Thus, x = 2

Optional Step 3: We can check the validity of our answer by plugging in 2 for x and seeing we get the 16 on both sides:

3(2) + 5(2) = 16

6 + 10 = 16

16 = 16

Thus, our answer is correct.