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Question
Solve the following equations: 8x + a(x - b) = 10(ax - b)
Solution
8x + a(x - b) = 10(ax - b)
⇒ 8x + ax - ab - 10ax + 10b = 0
⇒ 8x - 9ax = ab - 10b
⇒ x(8 - 9a) = b(a - 10)
⇒ x = `("b"("a" - 10))/((8 - 9"a")`.
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