Question

solve the following set of equations by substitution
-5x + y =2
-3x + 6y = -12

Answer 1

-5x + y = 2

i dontknow the answer

-3x + 6y = -12

6 - 3 = 3

so,3× x × y = -12

xy = -12 + 3

xy = -9

xy = -9 ÷ 2

xy = - 4.5

Answer 2

Hopefully it’s helpful for you
Thanks