Mathematics
lizzfourie
2021-01-13 19:43:18
-3x-4y=2 3x+3y=-3 can I get the answer to this using systems of subtraction?
ANSWERS
charlottenichol
2021-01-13 21:14:10

[latex] left { {{-3x-4y=2} atop {3x+3y=-3}} ight.[/latex] Multiply second equation by -1 [latex] left { {{-3x-4y=2} atop {-3x-3y=3}} ight. [/latex] Now, we can subtract this two equations -3x-4y-(-3x-3y)=2-3 -3x-4y+3x+3y= -1 -y = -1 y = 1 So The answer: x = -2; y = 1

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