Question

a+b+c=878
a=b-41
c=+b
a=?
b=?
c=?

Answer 1

a/11=b/8
Inmultim pe diagonala si este
8a=11b
a=11b/8

a)a+b=76
11b/8+b=76
(11b+8b)/8=76
19b=76*8
19b=608
b=608/19
b=32
a+b=76
a+32=76
a=76-32
a=44

b)a-b=0.9
11b/8-b=0.9
(11b-8b)/8=0.9
3b=0.9*8
3b=7.2
b=7.2/3
b=2.4
a-b=0.9
a-2.4=0.9
a=0.9+2.4
a=3.3

c)3a+b=41
3(11b/8)+b=41
33b/8+b=41
41b/8=41
41b=41*8
41b=328
b=328/41
b=8
3a+b=41
3a+8=41
3a=41-8
3a=33
a=33/3
a=11