Answer:
y = -5
x = -2
Explanation:
x+7y=-37
2x-5y=21
Multiply first equation by -2
-2 × (x + 7y) = -37 ➡ -2x -14y = 74
now add the equation up
2x-5y -2x -14y = 21 + 74 (-2x will eliminate 2x)
-19y = 95 divide both sides by 19
y = -5 we can find the value for x by using this information
x + 7y = -37 replace y by -5
x + 7×(-5) = -37
x = -2