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⁻⁻⁻⁻ - ⁻⁻⁻⁻⁻ =x+2y /*10
2 5
3-2x 4y-2
₋₋₋₋ - ₋₋₋₋₋₋=2 - x /*6
3 6 ⁻⁻⁻⁻
2
(5×-2)-2( y+3)=10(x+2y)
2(3-2x)-( 4y-2)=3(2-x)
5×-2- 2y-6=10x+20y
6-4x-4y+2=6-3x
5×-10x=20y+2y+8
-4x-4y=6-3x-8
-5×=22y+8 /*(-1)
-4x-4y=6-3x-8
5×=-22y-8
-x-4y=-2
×=-4,4y-1,6
-(-4,4y-1,6)-4y=-2
×=-4,4y-1,6
4,4y+1,6-4y=-2
×=-4,4y-1,6
0,4y=-3,6
×=-4,4y-1,6
y=-9
×=-4,4*(-9)-1,6
y=-9
×=38
y=-9