Question

10. Wenn a=3 und b+c=5, berechne:
a) b + c - a;
b) 4(a + 1);
c) 3(a+2) +4(a-1);
d) 2a +4b+4c;
e)ab+ac​

Answer 1

Răspuns:

a) 5-3=2

b)4(3+1)=4×4=16

c)3(3+2)+4(3-1)=3×5+4×2=15+8=23

d)2×3+4×(b+c)=6+20=26

e)3b+3c=3(b+c) =3×5=15