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6+2y=8 -6 -6 2y=2 /2 /2 y=1
are those two different problems ? ... i am going to solve them as if they are 14x-2y=78 (re arange the terms to be easily solved) -2y=78-14x (times by -1) 2y= -78+14x (divide all terms by 2) y=-39+7x (so) y=7x-39 2x-2y=6 (re arange the terms to be easily solved) -2y=6-2x (times by -1) 2y=2x-6 (divide all terms by 2) y=x-6
5
3x-2y=6 -2y=-3x+6 y=1.5x-3
4y+2 = 2y+6 4y-2y = 6-2 2y = 4 y = 2