15x = -32 - 14y
(+)9x = -64 + 14y
___________
25x=-96(+14y and -14y are cancel out each other)
x=-96/25
x=-3.84
put x into the first equation,
15×-3.84=-32-14y
-57.6=-46y
-57.6/-46=y
1.25=y
thus, y=1.25
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