3x+4y =-5 3x+3y=-2 solve using substitution

1 answer:

7 0

3x + 4y = -5
-3x -3x

4y= -3x -5
/4 /4

y= -3/4x-5/4

3x + 3y = -2
-3x -3x

3y = -3x-2
/3 /3

y= -1x-2/3

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