Question

Set up an en equation and use it to solve for x

Answer 1

x = 30

Explanation:

180° = total

153° = part

180° - 153° = 27°

Then use the equation to find the value of x

(x - 3) = 27

(x + 3) = +3 Add 3 to both sides!

x = 30

Answer 2

x = 30

Explanation:

The 2 angles lie on a straight line and sum to 180° , then

x - 3 + 153 = 180

x + 150 = 180 ( subtract 150 from both sides )

x = 30