4x+y=-10
5x-2y=-19
--------------------
y=-4x-10
5x-2y=-19
--------------------
y=-4x-10
5x-2(-4x-10)=-19
--------------------
y=-4x-10
5x+8x+20=-19
--------------
y=-4x-10
13x=-39,x=-3
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y=-4.(-3)-10=12-10=2,y=2
------------------------------
/x,y/=/-3,2/
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