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4x-7=17
4x=17+7
4x=24/:4
x=6
8,5+3y=-5,3
3y=-5,3-8,5
3y=-13,8
y=4,6
8x-6=4x+14
8x-4x=14+6
4x=20
x=5
4x=17+7
4x=24/:4
x=6
8,5+3y=-5,3
3y=-5,3-8,5
3y=--13.8/:3
y=-4,6
8x-6=4x+14
4x=20
x=5
zadanie 2. x+x-6=25
2x=19/:2
x=9.5
9,5+6=15,5
4x-7=17
4x=17+7
4x=24/:4
x=6
8,5+3y=-5,3
3y=-5,3-8,5
3y=-13,8
y=4,6
8x-6=4x+14
8x-4x=14+6
4x=20
x=5