Question

Select the correct answer. What is the solution for x in the equation? 9x − 20 − 4x = 40

Answer 1

x=12

Explanation:

5x-20=40

5x=40+20

5x=60

x=12

Answer 2

• x=12

Explanation:

9x-20-4x=40

9x-4x-20=40

5x-20=40

Add 20 to both sides:-

5x-20+20=40+20

5x=60

Divide both sides by 5:-

5x/5=60/5

x=12

Hope this helps! :)