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2x=16
x=8
6x-18=2x+2 obustronnie +18 -2x
4x= 20
x=5
9x-8=3x+2 obustronnie +8 -3x
6x= 10
x= 3/5
;)
5x-3x=4+12
2x=16
x=8
2.6x-18=2x+2
6x-2x=2+18
4x=20
x=5
3.9x-8=3x+2
9x-3x=2+8
6x=10
x=5/3
5x-12=3x+4
5x-3x=4+12
2x=16 /:2
x=8
2.
6x-18=2x+2
6x-2x=2+18
4x=20 /:4
x=5
3.
9x-8=3x+2
9x-3x=2+8
6x=10 /:6
x=10/6=5/3=1,(6)