Sprawdz,czy dane liczby spelniaja rownanie a)2(x+1)=x+8 (liczba 6) b)12x-(2x+1)=9(2-x) (liczba 1)
a)2(x+1)=x+8
2x+2=x+8
x=6
tak
b)12x-(2x+1)=9(2-x)
12x-2x-1=18-9x
10x-1=18-9x
19x=19
x=1
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a)2(x+1)=x+8
2x+2=x+8
x=6
tak
b)12x-(2x+1)=9(2-x)
12x-2x-1=18-9x
10x-1=18-9x
19x=19
x=1
tak