201,584 views
9 votes
9 votes
(3x - 36)°
(x + 12)°
32°

User Squeegee
by
3.1k points

1 Answer

7 votes
7 votes

Answer:

43

Explanation:

Simplifying

3x + -36 + 32 + x + 12 = 180

Reorder the terms:

-36 + 32 + 12 + 3x + x = 180

Combine like terms: -36 + 32 = -4

-4 + 12 + 3x + x = 180

Combine like terms: -4 + 12 = 8

8 + 3x + x = 180

Combine like terms: 3x + x = 4x

8 + 4x = 180

Solving

8 + 4x = 180

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + 4x = 180 + -8

Combine like terms: 8 + -8 = 0

0 + 4x = 180 + -8

4x = 180 + -8

Combine like terms: 180 + -8 = 172

4x = 172

Divide each side by '4'.

x = 43

Simplifying

x = 43

User KDD
by
3.1k points