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adelina 88 [10]
3 years ago
10

8x-21+117-x=180 find x

Mathematics
2 answers:
mr Goodwill [35]3 years ago
6 0
Combine like terms: 7x+96=180
Bring x to one side: 7x=84
Divide by 7: x=12
allochka39001 [22]3 years ago
4 0
8x-x-21+117=180
7x+91=180
180-91=7x
89=7x
X=89/7
X=12.71428571429
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The first step is to combine like terms. So u would do 2-6. You then get -4 then u just bring everything else down. So now u should have this :

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Now u do the inverse of 7 which would be -7 and u do that on both sides. So it would look like this :

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