przekształć tożsamościowo: 3 (a - 5) = (x + 0,2y) *4 = 6a + 6b = 12m + 4 = 5a - 3a = a *7 + 5 = b * 4 + 4 =
3 (a - 5) =3a-15
(x + 0,2y) *4 =4x+0,8y
6a + 6b =6(a+b)
12m + 4 =4(3m+1)
5a - 3a =2a
a *7 + 5 =a(7+ \frac{5}{a})
b * 4 + 4 =4(b+1)
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3 (a - 5) =3a-15
(x + 0,2y) *4 =4x+0,8y
6a + 6b =6(a+b)
12m + 4 =4(3m+1)
5a - 3a =2a
a *7 + 5 =a(7+ \frac{5}{a})
b * 4 + 4 =4(b+1)