Asked by anime girl

∠ 1 and ∠ 2 ∠1 and ∠2 are supplementary angles. m ∠ 1 is 4 y + 7 , and m ∠ 2 is 9 y + 4 m∠1 is 4y+7, and m∠2 is 9y+4. Find m ∠ 2
can somebody please explain everything to me, step by step, because i don't understand how to get to some steps
Answered by oobleck
Why do you repeat everything twice? Very annoying.

not very many steps involved.
The first step is to know what "supplementary" means -- the measures of the two angles add up to 180°
Now, since you have expressions for those measures, just add 'em up:
4y+7 + 9y+4 = 180
13y = 169
y = 13
So, m∠2 = 9*13+4 = 121°
Answered by anime girl
it was an accident
and thanks
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