If it's not what You are looking for type in the system of equations solver your own equations and let us solve it.
Remember to put linear equations with variables x and y.
for example:
2x+y=8
x+3y=14
| 7/100x-1/100y=3.7;28/100x+14/100y=23.8 | | 1/10x+2/10y=-5/10;7/10x-7/10y=4.9 | | 1/10x+4/10y=-1.4;2/10x-7/10y=3.2 | | 15x-10y=1;15y=2+5x | | 8x-5y=15;8x=5y+15 | | -2x+3y=1;4x-5y=-1 | | 3x-y=-1;x+y=5 | | 1/4x^2+11x+121;4x+4x+1 | | 5x-y=-2;x+7y=50 | | x+y=13;4x-y=12 | | x+y=8;-2x+y=-10 | | x-y=-4;x+y=6 | | 3x+2y=4;5x-4y=4 | | x+5y=6;4x-15y=10 | | -4x-4y=12;8y=-8x-24 | | 3x-2y;5x=5-25y | | 2x+2y=4;y=5-3x | | x+5y=5;5x-10y=11 | | -4x-4y=12;16y=-16x-48 | | 4v-8;-24 | | x+2y=-1;2x-y=4 | | x-2y=1;3x+6y=3 | | 4x-y=8;x=2y-5 | | 6x-7x=15;-x+y=-2 | | x+3y=5;x-4=-2 | | 6x-y=9;y=2-6x+1 | | -x+4y=-6;6x-7y=19 | | 2x+5y=8;x-3y=8 | | y=3x-10;y=4x+11 | | -3x-9y=9;x+3y=12 | | x+3y=2;2x+6y=-3 | | 2x-3y=7;-3x+y=7 |