Question

Equations reducable to linear equation
4th and 5th question​

Answer 1

$4) 4x + \frac{6}{y} = 15 \:--(1) \: and$

$3x - \frac{4}{y} = 7 \: ---(2)$

/* Multiply equation (1) by 2 and equation (2) by 3 , we get */

$8x + \frac{12}{y} = 30 \: --(3)$

$9x - \frac{12}{y} = 21 \: ---(4)$

/* Add equations (3) and (4) , we get /*

$\implies 17x = 51$

$\implies x = \frac{51}{17} \\\implies x = 3\: --(5)$

/* Put x value in equation (1), we get */

$4\times 3 + \frac{6}{y} = 15$

$\implies 12 + \frac{6}{y} = 15$

$\implies \frac{6}{y} = 15 - 12$

$\implies \frac{6}{y} = 3$

$\implies y = \frac{6}{3}$

$\implies y = 2 \: --(6)$

/* Now ,put x and y values in y = ax - 2 , we get */

$2 = a \times 3 - 2$

$\implies 2+2 = 3a$

$\implies 4= 3a$

$\implies \frac{4}{3} = a$

Therefore.,

$\red{ Value \:of \:a } \green {= \frac{4}{3}}$

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Answer 2

Answer:

4/3 here is answer friend

Step-by-step explanation:

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