Question

Someone please help this is my last question and I’m already fail so please give right answer if you can :)

Answer 1

Answer: x=20

Step-by-step explanation:

the following angles are supplementary so they will add up to equal 180

4x+21 +2x +39=180

step 1 combine like terms

6x+60=180

step 2 subtract 60 from each side

6x=120

step 3 divide each side by 6

x=20