Rozwiąż układy równań metodą podstawiania albo metodą przeciwnych współczynników.
1. { x-y-4
{ x+6+y+6=34
2. {x-3=3(y-3)
{x+4=2(y+4)
3. {y-1=5(x-1)
{z-1=2(y-1)
4. {x+y+2(y-1)
{y-1=5(x-1)
5. {x-3=4(y-3)
{x-3+y-3=55
6. {x=3y
{10x+y+x=88
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x-y=4
x+6+y+6=34
x=4+y
4+y+6+y+6=34
x=4+y
2y=34-4-6-6
x=4+y
2y=18
y=9
x=13
2. {x-3=3(y-3)
{x+4=2(y+4)
x=3y-6
3y-2y=14
y=14
x=36
3. {y-1=5(x-1)
{z-1=2(y-1)
y=5x-4
z-1=2y-2
y=5x-4
z=2(5x-4)-1
y=5x-4
z=10x-7
y=5x-4