Question

x=3y and x/2+y-42.5 slove this equation​

Answer 1

/* There is a mistake in the question, it may be like this */

$\red{slove \:x = 3y \:and \: \frac{x}{2} + y = 42.5 }$

$Given \: x = 3y \: --(1) \:and$

$\frac{x}{2} + y = 42.5 \: --(2)$

/* Put x = 3y in equation (2), we get */

$\implies \frac{3y}{2} + y = 42.5$

$\implies \frac{3y + 2y}{2} = 42.5$

$\implies \frac{5y}{2} = 42.5$

$\implies y = 42.5 \times \frac{2}{5}$

$\implies y = 8.5 \times 2$

$\implies y = 17 \: --(3)$

/* Put y = 17 in equation (1) , we get*/

$x = 3 \times 17$

$\implies x = 51$

Therefore.,

$\green { x = 51 \: and \:y = 17 }$

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