Odpowiedź:
a) 2-15x+20=30+5x
15x-5x=30-2-20
10x=8
X=8/10
c) 3(2x-3)=5x
6x-9=5x
6x-5x=9
X=9
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Odpowiedź:
a) 2-15x+20=30+5x
15x-5x=30-2-20
10x=8
X=8/10
c) 3(2x-3)=5x
6x-9=5x
6x-5x=9
X=9