Question

Lines a and b are parallel.

What is the value of x?
-5
-10
-35
-55

Answer 1

11x+7x+90=180
Minus 90 on both sides

18x=90
Divided 18 on both sides
X=5

Answer 2

5

Explanation:

It's a right triangle so 7x + 11x = 90

Solve for x

7x + 11x = 90

18x = 90

x = 5