oblicz : x + (x-4) = 33
x+(x-4)=33
x+x-4=33
2x-4=33
2x=37|:2
x=18,5
x + (x-4) = 33
2x = 33+4
2x = 37
x = 37/2 = 18,5
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x+(x-4)=33
x+x-4=33
2x-4=33
2x=37|:2
x=18,5
x + (x-4) = 33
x+x-4=33
2x = 33+4
2x = 37
x = 37/2 = 18,5