2ax-15=2(x+5)+5(x-1)

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14-01-2018
Mathematics

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2ax-15=2(x+5)+5(x-1)

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altavistard altavistard · Answer 1 · 2018-01-14T18:35:19+01:00

Perform the indicated multiplication:

2ax - 15 = 2x + 10 + 5x - 5

Group x terms together: 7x - 2ax = 5 - 15
x(7-2a) = - 10
-10
x = ----------
7-2a

Here, a cannot be 3.5, because the denominator 7-2a would be zero.