SOLUTION: angle A is 21 less than twice as large as its supplement angle B

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Question 344061: angle A is 21 less than twice as large as its supplement angle B
Found 2 solutions by Fombitz, JBarnum:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A%2BB=180
.
.
.
A=2B-21
Substitute,
%282B-21%29%2BB=180
3B=201
highlight%28B=67%29degrees
.
.
A=2%2867%29-21
highlight%28A=113%29degrees

Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
supplement angles add up to 180
A+B=180
A=2B-21 "A is 21 less than twice as large as its supplement angle B"


i dont know if ur looking for just the expression or trying to solve for each angle?


%282B-21%29%2BB=180
3B=201
B=67


A=2B-21
A=2%2867%29-21
A=134-21
A=113


Check
A%2BB=180
113%2B67=180
180=180
Correct