Question

Plss solve this question
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Answer 1

Answer:

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Answer 2

$\large\underline{\sf{Solution-}}$

The first equation is

$\rm :\longmapsto\:3x - \dfrac{y + 7}{11} + 2 = 10$

$\rm :\longmapsto\:3x - \dfrac{y + 7}{11} = 10 - 2$

$\rm :\longmapsto\:\dfrac{33x - (y + 7)}{11} = 8$

$\rm :\longmapsto\:\dfrac{33x - y - 7}{11} = 8$

$\rm :\longmapsto\:33x - y - 7 = 88$

$\rm :\longmapsto\:33x - y = 88 + 7$

$\rm :\longmapsto\:33x - y = 95 - - - (i)$

Second equation is

$\rm :\longmapsto\:2y + \dfrac{x + 11}{7} = 10$

$\rm :\longmapsto\:\dfrac{14y + x + 11}{7} = 10$

$\rm :\longmapsto\:x + 14y + 11 = 70$

$\rm :\longmapsto\:x + 14y = 70 - 11$

$\rm :\longmapsto\:x + 14y = 59$

$\rm :\longmapsto\:x = 59 - 14y - - - - (ii)$

Put (ii) in (i),

$\rm :\longmapsto\:33(59 - 14y) - y = 95$

$\rm :\longmapsto\:1947 - 462y - y = 95$

$\rm :\longmapsto\:1947 - 463y = 95$

$\rm :\longmapsto\:- 463y = 95 - 1947$

$\rm :\longmapsto\:- 463y = - 1852$

$\rm :\longmapsto\:y = 4 - - - - (iii)$

Put (iii) in (ii),

$\rm :\longmapsto\:x = 59 - 14 \times 4$

$\rm :\longmapsto\:x = 59 - 56$

$\rm :\longmapsto\:x = 3$

So, Solution of given equation is x = 3, y = 4.