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4x-3x=5-4
x=1
b) 2(x-8)-5
Sorka nie da się
c) 7x-1=1(x+7)
7x-1=x+7
7x-x=7+1
6x=8
x=4/3
4x-3x=5-1
x=4
b)2x-16=1
2x=17 /:2
x=8 1/2
c)
7x-1=x+7
6x=6/:6
x=1
4x-3x=-1+5
x=4
b)2(x-8)-5
2x+16-5
2x+11
13x
c)7x-1=1(x+7)
7x-1=1x-7
7x-1x=1-7
6x=-6||:6
x=0