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Please help! really needing help solve the problem

Please help! really needing help solve the problem
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5 votes
Please help! really needing help solve the problem

Please help! really needing help solve the problem-example-1
User Mike Thompson
by
8.4k points

1 Answer

2 votes

Answer:

7

Explanation:

By Basic proportionality theorem:


(10)/(8) = (3x - 6)/(12) \\ \\ (10 * 12)/(8) = 3x - 6 \\ \\ (120)/(8) = 3x - 6 \\ \\ 15 = 3x - 6 \\ 15 + 6 = 3x \\ 21 = 3x \\ (21)/(3) = x \\ 7 = x \\ \\ \huge \red { \boxed{x = 7}}

User Trevan
by
8.1k points
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