<img src="https://tex.z-dn.net/?f=x%2By%3D-9%5C%5C%20x%2B2y%3D-25%5C%5Cwhat%20is%20value%20of%20x" id="TexFormula1" title="x+y=-

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Alchen [17]

2 years ago

9\\ x+2y=-25\\what is value of x" alt="x+y=-9\\ x+2y=-25\\what is value of x" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

ExtremeBDS [4]2 years ago

5 0

x + y = -9

x + 2y = -25

Rewrite the first equation as x = -9-y

Relace x in the second equation:

-9-y + 2y = -25

Simplify:

-9 +y = -25

Add 9 to both sides:

y = -16

Now you know y,, replace y in the first equation and solve for x:

x -16 = -9

Add 16 to both sides:

x = 7

Answer: x = 7

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