Question

Would x=1?
2x + 5y = −3
−15x − 5y = −10

Answer 1

And what is y?

Answer 2

yes. add the 2 equations. you get
2x -15x + 5y -5y = -3 + -10
-13 x = -13
x = -13/-13 = 1
btw, y = -1

Answer 3

Thanks!

Answer 4

2x + 5y = -3

plop in 1 for x
2*1 +5y = -3
2+5y= -3
2+ -2 + 5y = -3 + -2
5y = -5
y = -5/5 =-1