Question

10. Aflati numerele a, b, c, stiind că a + b = c, a-b = b şi b + c = 32 dau coroană ​

Answer 1

a-b=b

a=b+b=2×b

a + b= c

2×b+b=c

3×b=c

b + c = 32

b+3×b=32

4×b=32

b=32:4=8cm

a=2×b=2×8=16

c=3×b=3×8=24

Answer 2

Răspuns:

a+b=c=>2b+b=c=>c=3b

a-b=b=>a=b+b=>a=2b

b+c=32=>b+3b=32=>b=32:4=>b=8

a+8=3·8=>a=24-8=>a=16

c=3·8=>c=24