Question

solve
67x+112y=-89,
112x +67y=-269

Answer 1

please refer to the attachment file given mate.

hope this answer will be helpful to you dear.

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Answer 2

Given-

$67x+112y=-89,$

$112x +67y=-269$

The substitution method is the algebraic method to solve simultaneous linear equations. As the word says, in this method, the value of one variable from one equation is substituted in the other equation.

$67x+112y=89$ ....(i)

$112+67y=-269$....(ii)

Multiply equation (1) by 67 and equation 2 by 112

$4489x+7504y=5963\\12544x+47504y=-30128$

$-8055x=36091$

$x=-\frac{36091}{8055}$

$x=-4.48$

putting this value in equation (1)

$67(-4.48)+112y=89$

$112y=89+300.16$

$112y=389.16$

$y=\frac{389.16}{112}$

$y=3.47$

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