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Remember to put linear equations with variables x and y.
for example:
2x+y=8
x+3y=14
| 6x+13;2x+1 | | -2x+y=-6;-3x-y=-4 | | -2x+4y=-14;0=3x+y | | Y=11x-6;Y=-6x+11 | | -2x-10y=10;-3x+10y=-10 | | -3x-2y=-5;7x+6y=1 | | -4x-6y=-6;7x+9y=-9 | | 5x-2y=-3;4x-2y=-6 | | x+2y=1;2x+5y=3 | | 4x+6y=10;2x+5y=1 | | 3x+4y=-36;y=2x-9 | | 6x^2-x-12;2x-3 | | 2x^3-11x-6;x+2 | | 4x+2y=9;y=5-3x | | x+3y=4;6x-9y=6 | | 2x+y=0;x-y=-3 | | y-4x+1;y2x+2 | | x+y=-2;2y-x=2 | | -5x+4y=6;5x+3y=8 | | -2x+7y=3;4x+6y=-6 | | 5+k4=17;2(5)-3(4)=-2 | | 4x+5y=-6;3x+8y=15 | | x/4+y/2=-1;3/8x+5/3y=-7/12 | | 0.1x+0.7y=-2.9;0.4x-0.8y=6.4 | | 2x+5y=26;x=41-6y | | 32x-4y=12;y=8x+3 | | 9x+2y=-66;x=19-9y | | 2x-y=4;3x-5y=-22 | | x+2y=6;3x-2y=2 | | 7x-y=40;25x+18y=790 | | 15x-10y=-1;15y=-2/15+5/15x | | 0.06x-0.01y=2.7;0.25x+0.16y=17.3 |