Question

Solve this by substitution .
jinko answer nhi ata to ulta sidha mat likhna.
bsdk​

Answer 1

Step-by-step explanation:

what is the question bro

Answer 2

Question -

• Solve the following pair of equations by substitution method -

$\frac{3x}{2} - \frac{5y}{3} = - 2$

$\frac{x}{3} + \frac{y}{2} = \frac{13}{6}$

Solution -

$\frac{3x}{2} - \frac{5y}{3} = - 2.........1)$

And,

$\frac{x}{3} + \frac{y}{2} = \frac{13}{6}$

$\frac{y}{2} = \frac{13}{6} - \frac{x}{3}$

$\frac{y}{2} = \frac{13 - 2x}{6}$

$y = 2 \times \frac{13 - 2x}{6}$

$y = \frac{13 - 2x}{3} .......2)$

By substituting the value of y in equation 1) we will get -

$\frac{ 3x}{2} - \frac{5}{3} \times \frac{13 - 2x}{3} = - 2$

$\frac{3x}{2} - \frac{5}{9} \times {13 - 2x} = - 2$

$\frac{27x - 10}{18 } \times 13 - 2x = - 2$

$27x - 10(13 - 2x) = - 2 \times 18$

$27x - 130 + 20x = - 36$

$47x = 130 - 36$

$47x = 94$

$x = \frac{94}{47}$

$x = 2$

By substituting the value of x in 2) we will get -

$y = \frac{13 - 2x}{3}$

$y = \frac{13 - 2 \times 2}{3}$

$y = \frac{13 - 4}{3}$

$y = \frac{9}{3}$

$y = 3$

Therefore the value of x is 2 and y is 3