Question

Ex 18 si 19 !E urgentt! Dau coroanaaaa​

Answer 1

Răspuns:

a+b+c=256

b=a-37=>a=b+37

b=c+87=>c=b-87

b+37+b+b-87=256

3b=256-37+87

b=306:3=102

a=102+37=139

c=102-87=15

____________

a+b+c=220

(a+b)-c=44=>a+b=44+c

(b+c)-a=102=>b+c=102+a

44+c+c=220

2c=220-44

c=176:2

c=88

a+102+a=220

2a=220-102

a=118:2

a=59

59+b+88=220

b=220-147

b=73