Question

Help!!!!! find the value of x.

Answer 1

x = 48

Explanation:

The two angles shown in the diagram are supplementary and add to 180° because they form a straight line. We can set up an equation:

x - 12 + 3x = 180

4x - 12 = 180

4x = 192

x = 48

Answer 2

`x=42` ✔︎

Explanation:

• ∠1 + ∠2=180
• 3x+x-12=180
• 4x-12=180
• 4x=180-12
• 4x=168
• x=42°

∠1= 3x=3×42=126°

∠2=x-12=42-12= 30°

------------------------------

hope it helps...

have a great day!!