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Alona [7]
4 years ago
15

(78-x)+36+(3x-10)= 180 What is x

Mathematics
2 answers:
qaws [65]4 years ago
7 0
(78-x)+36+(3x-10)= 180\\\\78-x+36+3x-10= 180\\\\3x-x+78+36-10=180\\\\2x+104=180\qquad|-104\\\\2x+104-104=180-104\\\\2x=76\qquad|:2\\\\\boxed{x=38}
Mrac [35]4 years ago
5 0

78+-x+36+3x+-10=180

2x+78+36+-10=180

2x+104=180

2x=76

x=38

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