Question

13x=-21-2Y

-15x=23+2Y

Answer 1

please, solve the first equation for y, considering x known, and write your answer

Answer 2

@zxcvbnm08765 please try, it' simple, add 21 to both sides of the first equation and write your result

Answer 3

@Michele_Laino i got x=-1 and y =-8

Answer 4

I think x=-1, and y=-4

Answer 5

but when you put it in the equation it doesn't equal to the sum

Answer 6

wait nevermind

Answer 7

please substitute x=-1 and y=-4 into the first equation, you would get an identity, try please