SOLUTION: 10-x divided by 2+x=15/7

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Question 505018: 10-x divided by 2+x=15/7
Answer by oberobic(2304) About Me  (Show Source):
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%2810-x%29%2F%282%2Bx%29+=+15%2F7
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cross multiply
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%2810-x%29%2A7+=+%282%2Bx%29%2A15
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70+-7x+=+30+%2B15x
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add 7x to both sides
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70+=+30+%2B22x
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subtract 30 from both sides
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40+=+22x
so
22x+=+40
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x+=+40%2F22
x+=+20%2F11
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Check answer
%2810-20%2F11%29%2A7+=+%282%2B20%2F11%29%2A15
%28630%2F11%29+=+%28630%2F11%29
Correct.
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Answer: x=20/11
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Done