NEEEEEEEEEEEEED HELP. ONE QUESTION. Medals.
∠a and ∠b are supplementary. If m∠a = 3x + 4 and m∠b = x - 8, what is the measure of ∠b?

Question

NEEEEEEEEEEEEED HELP. ONE QUESTION. Medals.
∠a and ∠b are supplementary. If m∠a = 3x + 4 and m∠b = x - 8, what is the measure of ∠b?

anonymous · Answer

@ganeshie8 , he can help you on this one gurly :) idk how :(

ganeshie8 · Answer

supplementary angles add up to 180

ganeshie8 · Answer

$\angle a + \angle b = 180$

ganeshie8 · Answer

substitute angles above, and solve x first

anonymous · Answer

Confused. @ganeshie8

anonymous · Answer

CAN SOMEONE JUST HELP ME.

sumi29 · Answer

@TheRealAmiee : ganeshie8 pointed out the directions to you. You just solve for x, since you know the property of supplementary angles, and substitute the value of x to find the angle b.

anonymous · Answer

Is it 46?! @sumi29 @ganeshie8

sumi29 · Answer

Yes, x is 46. Now just find b and you are done!

sumi29 · Answer

@TheRealAmiee : Did you get the answer?