Question 59

Solve the following:

10x-5-7x=5x+15-8

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Solution

Given, 10x-5-7x=5x+15-8
$\Rightarrow 10 x - 7 x - 5 x = 5 + 15 - 8 \Rightarrow - 2 x = 12 \Rightarrow \frac{- 2 x}{- 2} = \frac{12}{- 2} ∴ x = - 6$

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Question 59

Solve the following:

10x-5-7x=5x+15-8

7 - 5 x = 5 - 7 x

\sqrt{5 x - 5} + \sqrt{10 x - 5} = \sqrt{15 x - 10}

2 (5 x^{2} + 7 x + 8) - (4 x^{2} - 7 x + 3) =

7 x + 3 y = 15, 12 y - 5 x = 39

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