Question

Which equation can be used to solve for x in the
following diagram?
(3x + 12)
Choose 1 answer:
3x + 12) + x = 180
(3x + 12) = x
3x = 180 + x
(3x + 12) + x = 90

Answer 1

3x+12+x=180. Bc we know that it’s an 180 degree angle just from the looks of it. Now 3x+12 is already in the equation we need plus x for the missing value. Which is not included in 3x+12 for the whole value.