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Mama L [17]
2 years ago
15

;(x+1)" alt="38+7·(x-3)=9·(x+1)" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
AnnZ [28]2 years ago
6 0

38 + 7x - 21 = 9x + 9

Combine like terms.

17 + 7x = 9x + 9

Eliminate a x.

17 = 2x + 9

8 = 2x

x = 4

ryzh [129]2 years ago
5 0

38 + 7x - 21 = 9x + 9

7x + 17 = 9x + 9

Subtract both sides 9

7x + 17 - 9 = 9x + 9 - 9

7x + 8 = 9x

Subtract sides 7x

7x - 7x + 8 = 9x - 7x

8 = 2x

Divide both sides by 2

8 ÷ 2 = 2x ÷ 2

x = 4

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\text{Hey there!}

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