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2(5x-1)+3y=5(3x+y)+2
6x-3+4y-8=9
10x-2+3y=15x+5y+2
6x+4y=20
10x-15x-5y+3y=2+2
6x+4y=20 /*5
-5x-2y=4 /*6
30x+20y=100
-30x-12y=24
+____________
8y=124 /:8
y=15,5
y=15,5
6x+4y=20
y=15,5
6x+4*15,5=20
y=15,5
6x+62=20
y=15,5
6x=-42 /:6
x=-7
y=15,5
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2(x+y)-3(x-2y)=-7x-2
5(x+1)-2(3-y)=-4(x+y)
2x+2y-3x+6y=-7x-2
5x+5-6+2y=-4x-4y
-x+7x+8y=-2
5x+4x+2y+4y=-5+6
6x+8y=2 /*3
9x+6y=1 /*(-2)
18x+24y=6
-18x-12y=-2
+__________
12y=4 /:12
y=1/3
y=1/3
6x+8y=2
y=1/3
6x+8*1/3=2
y=1/3
6x+2 2/3 =2
y=1/3
6x=-2/3 /:6
x=1/9
y=1/3
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4(x+2)-3(y-1)=x+y-3
3(x-4)-2(y-2)=4(x-y)+4
4x+8-3y+3=x+y-3
3x-12-2y+4=4x-4y+4
3x-4y=-14
-x+2y=12 /*(-1)
3x-4y=-14
x=-12+2y
3(-12+2y)-4y=-14
x=-12+2y
-36+6y-4y=-14
x=-12+2y
2y=22 /:2
x=-12+2y
y=11
x=-12+22
x=10
y=11
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