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Linear Equation in 2 Variables

If y = mx +...

Question

If $y = m x + c$ ; then find the value of $x$ , when $y = - 8, m = - 1$ and $c = 2$ .

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Solution

Given, $y = m x + c$
$∴ x = \frac{y - c}{m}$
Also given, $y = - 8, m = - 1, c = 2$
$∴ x = \frac{- 8 - 2}{- 1}$
$∴ x = 10$

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