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2x-6x=-15-14
-4x=-29/:-4
x=7,25
3x-15+7=x+1
3x-x=9
2x=9/:2
x=4,5
2x+14=6x-15
2x-6x=-15-14
-4x=-29 / -4
x=7,25
3(x-5)+7=x+1
3x-15+7=x+1
2x=9 / :2
x=4.5
a gdzie jest 2 zad.??