How do you solve the system of equations $2 x + 5 y = - 8$ $2x + 5y = - 8$ and $4 + y = - 12$ $4+ y = - 12$ ?

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Answer 1 · 2017-12-19T06:33:57

x=36 and y=-16

let , $2x+5y=-8......................(1)$

$4+y=-12........................(2)$

From the second equation we get,y=-12-4=-16.

Now substitute this value in (1) No. equation.

$2x+5(-16)=-8$

or, $2x-80=-8$

$or,2x=-8+80$

$or,2x=72$

So, $x=36$

Hence your answer is $y=-16 and x=36$

How do you solve the system of equations 2x + 5y = - 82x+5y=−82x + 5y = - 8 and 4+ y = - 124+y=−124+ y = - 12?