Question

Help me with this pls

Answer 1

6x-2+20=90

or,6x+18=90

or,6x=90-18

or,6x=72

or,x=72÷6

x=12

Answer 2

Add em both and set em equal to 180

20+(6x-2)=180

18+6x=180

6x=162

X=27