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Remember to put linear equations with variables x and y.
for example:
2x+y=8
x+3y=14
| 1/5x+1/2y=-1/10;1/5x+4y=17/5 | | x+y=280;14x+7y=(280)(12) | | x+y=280;14x+7y=(280)(8) | | x+y=280;14x+7y=(2800)(8) | | (x+y)*2=18;(x-y)*4.5=18 | | x+y=54;x+10y=225 | | x+y=3947;x=y-853 | | x+y=175;x=y+95 | | 8x+y=4500;24x+18y=19800 | | -2x+3y=6;-6x+9y=0 | | x/2-y/3=5/6;x/5-y/4=15/10 | | (1/2x)+(1/5y)=(-23/10);(1/2x)+(2y)=(-1/2) | | 1/2x+1/5y=-23/10;1/2x+2y=-1/2 | | 7x+3y=10;x=54-7y | | 3x-7y=18;-5x+4y=-30 | | 8x-y=31;x+y=14 | | 28x-4y=8;y=7x+2 | | 15x-20y=1;5y=1+10x | | 3x+4y=27;x=69-8y | | 4x+y=12;y=2x | | y=-2x+2;7x+y=7 | | x-3y=-3;x+3y=9 | | x+y=3;y-x=3 | | 1.6x+1.6y=112;x-y=10 | | x+y=528;11x+15y=(528)(14) | | 3x+2y=81.34;2x+3y=77.36 | | x+y=9;x+14.95y=146.13 | | x+y=4339;x=y-1011 | | 2x=6+2y;-4/3x+y=-23/3 | | 3x+2y=0;15x+4=8y | | 3x-8y=-33;8x+3y=58 | | x+y=5;x+y=-3 |