These are vertical angles, so they are equal in measurements.
First, simplify [2(x + 10)]
Distribute 2 to all terms within the parenthesis
2(x + 10) = 2x + 20
Next, place both expressions equal to each other
2x + 20 = 3x - 30
Solve for x. Isolate the variable. Subtract 3x and 20 from both sides
2x (-3x) + 20 (-20) = 3x (-3x) - 30 (-20)
2x - 3x = -30 - 20
Simplify
-x = -50
Isolate the x. Divide -1 from both sides
-x/-1 = -50/-1
x = 50
50 is your answer for x
hope this helps
