Open Question: a couple more algebraic questions!(best answer of corse gets best answer to.!)?
Solve using linear combinations
-3x+3y=12
4x+2y=20
-3x+3y=12
4x+2y=20
x>-1
y<3
y>-3 (i have no idea what to do for this one lol)
solve by substitution
-4x+7y=-2
x=(-y-5)
please answer atleast one of them.!
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