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astraxan [27]
2 years ago
10

Hi I’m new can someone help me on this (PLZ NO LINKS)

Mathematics
1 answer:
Ymorist [56]2 years ago
7 0
Complementary angles add up to 90 degrees.
So to find A you would need to add A and B together and equal it to 90 (3x+25+5x-7=90)
Combine like terms together (8x+18=90)
Subtract 18 from night sides (8x=72)
Divide by 8 on both sides (x=9)
Then to find A substitute x into its equation (3(9)+25)=(27+25)=52

A=52 I think
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