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Dmitry_Shevchenko [17]
3 years ago
5

2/5 (x-4) =2x. Solve for x

Mathematics
1 answer:
Bess [88]3 years ago
7 0
\dfrac{2}{5}(x-4)=2x\ \ \ \ |multiply\ both\ sides\ by\ 5\\\\2(x-4)=10x\ \ \ \ |use\ distributive\ property:a(b-c)=ab-ac\\\\2x-8=10x\ \ \ |add\ 8\ to\ both\ sides\\\\2x=10x+8\ \ \ \ |subtract\ 10x\ from\ both\ sides\\\\-8x=8\ \ \ \ |divide\ both\ sides\ by\ (-8)\\\\\boxed{x=-1}
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QveST [7]

Answer:

number one.  186in^{2}  number two.  36cm^{2}

Step-by-step explanation:

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3 years ago
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Lemur [1.5K]

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Step-by-step explanation:

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3 0
2 years ago
Read 2 more answers
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