Question

What is the value of X?

x = 32
x = 36
II 111111
x = 37
(x + 15)
(4x - 20°
x = 40

Answer 1

X + (4X - 20) = 180; so X = 40

Answer 2

Option D, x = 40

Explanation:

Since x and (4x - 20) are supplementary, that means they add up to 180 degrees.

Step 1: Make an equation

x + (4x - 20) = 180

Step 2: Combine like terms

x + 4x - 20 = 180

5x - 20 = 180

Step 3: Add 20 to both sides

5x - 20 + 20 = 180 + 20

5x = 200

Step 4: Divide both sides by 5

5x / 5 = 200 / 5

x = 40

Answer: Option D, x = 40