Question

find the solution of this system of equations -6x+3y=-39 -6x-3y=-21

Answer 1

-6x +3y = -39
-6x -3y = -21
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-12x 0 = - 60

x = - 60 /(-12) = 5

x =5

-6*5 -3y = -21
-30 -3y = -21

-3y = 9

y = 9/(-3)

y = -3

x = 5
y = - 3

Answer 2

thanks

Answer 3

was my pleasure