Rozwiąż metodą podstawiania
4x+3(1+y)=1
-(x+8)+2y=-2
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4x+3+3y=1
-x-8+2y=-2
-x+2y=-2+8
4x+3y=1-3
-x=6-2y
4x+3y=-2
x=-6+2y
4(-6+2y)+3y=-2
-24+8y+3y=-2
8y+3y=-2+24
11y=22:11
y=2
x=-6+2*2
x=-6+4
x=-2
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_________________
_______________________________
=
4x+3+3y=1
-x-8+2y=-2
4x+3+3y=1
-x+2y=-2+8
4x+3y=1-3
-x=6-2y
4x+3y=-2
x=-6+2y
4(-6+2y)+3y=-2
x=-6+2y
-24+8y+3y=-2
x=-6+2y
8y+3y=-2+24
x=-6+2y
11y=22:11
x=-6+2y
y=2
x=-6+2*2
y=2
x=-6+4
y=2
x=-2