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Remember to put linear equations with variables x and y.
for example:
2x+y=8
x+3y=14
| x-y=40;x+y=88 | | x-y=40;1/8(x+y)=11 | | x-2y=6;2x-4y=5 | | 5a+3b=-11;4a-2b=0 | | x+4y=6;3x-2y=1 | | 3m-2n=5;2m+n=8 | | 3x+4y=-5;2x-y=4 | | 2x+5y=-24;8x-3y=19 | | x+y=15;x-y=1 | | 9x+3y=3;-9x-3y=24 | | 9x+3y=3;-9x-3y=24 | | 9x+3y=3;-9x-3y=24 | | x+3y=8;y=2x-9 | | x+y=4;y=3x | | 16x^2;49 | | 5x/2-7y/2=12/2;5y/3-2x/3=-7/3 | | 8x-7y=-2;x+7y=8 | | x+2y=6;6x-2y=15 | | -2x-2y=8;6y=-6x-24 | | 2(5)+3y=9;2x+3(3)=9 | | 2x+3y=9;x+3y=14 | | -12x-4y=6;4x+4y=20 | | 20x-20y=-100;-20x+20y=100 | | 4x+2y=4;y=3-3x | | 4x+y=5;3x+2y=5 | | 3x+2y=11;1x-2=-4y | | 1x=4y;3x-2y=20 | | 4x-7y=13;2x-7y=3 | | 3x-2y=16;5x+2y=8 | | 12x+3y=18;5x+3y=4 | | y-2x=0;2y+x=10 | | 3x+6=2y;2(y+5)=7x |