RÓWNANIA - jedno zadanie.
-(x+2)+4=y
3-(y+1)=2(y+1)
(oczywiście przed tym jedna wielka klamerka)
-(x+2)+4 = y
3-(y+1) = 2(y+1)
-x-2+4 = y
3-y-1 = 2y+2
-x+2 = y I*(-1)
-3y+2 = 2
x-2 = -y
-3y = 2-2
x = 2-y
-3y = 0 /:(-3)
y = 0
x = 2-0 = 0
{x = 2}
{y = 0}
LUB:
-x-y+2 = 0
-y-2y = 2-2
-x-y = -2 I*(-3)
-3y = 0
3x+3y = 6
-------------- +
3x = 6 /:3
x = 2
-x-2+4=y
3-y-1=2y+2
-x-y=-4+2
-y-2y=2+1-3
-x-y=-2 /*(-3)
-3y=0
3x+3y=6
- 3y=0
-------------
3x=6 /:3
x=2
-(2+2)+4=y
-4+4=y
y=0
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-(x+2)+4 = y
3-(y+1) = 2(y+1)
-x-2+4 = y
3-y-1 = 2y+2
-x+2 = y I*(-1)
-3y+2 = 2
x-2 = -y
-3y = 2-2
x = 2-y
-3y = 0 /:(-3)
x = 2-y
y = 0
x = 2-0 = 0
y = 0
{x = 2}
{y = 0}
LUB:
-(x+2)+4 = y
3-(y+1) = 2(y+1)
-x-2+4 = y
3-y-1 = 2y+2
-x-y+2 = 0
-y-2y = 2-2
-x-y = -2 I*(-3)
-3y = 0
3x+3y = 6
-3y = 0
-------------- +
3x = 6 /:3
x = 2
-3y = 0 /:(-3)
y = 0
{x = 2}
{y = 0}
-(x+2)+4=y
3-(y+1)=2(y+1)
-x-2+4=y
3-y-1=2y+2
-x-y=-4+2
-y-2y=2+1-3
-x-y=-2 /*(-3)
-3y=0
3x+3y=6
- 3y=0
-------------
3x=6 /:3
x=2
-(2+2)+4=y
-4+4=y
y=0