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Lubov Fominskaja [6]
4 years ago
5

I will give 20 points and Brainliest for one question if someone gives an explanation and the answer!!!! PLs help me, and hurry:

(

Mathematics
2 answers:
SIZIF [17.4K]4 years ago
4 0

100+x+C=49+4x+c


51=3x


x=\frac{51}{3}


x=17


CHECK:


C=C


180-(100+x)=180-(4x+49)


180-(100+17)=180-(4(17)+49))


180-117=180-117


63=63  CHECKS



Sever21 [200]4 years ago
3 0

100+x+C=49+4x+c

51=3x

x=\frac{51}{3}

x=17

CHECK:

C=C

180-(100+x)=180-(4x+49)

180-(100+17)=180-(4(17)+49))

180-117=180-117

63=63  CHECKS

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Collect like terms

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