Answer:
x=12
Explanation:
we know that a full line would equal 180 degrees
because we have two angels, they must add up to the said 180 degrees
In the first equation, when 10x-20 is multiplied by 12 we get 120-20 resulting in 100 degrees
the second equation is 6x+8
We must follow the same rule of x=12
6*12= 72 + 8 = 80
when we add the two angels, we get 180 degrees.