Question

axb=240 ax(b+5)=300 care sunt valorile lui a si b?

Answer 1

a * b = 240
a * (b + 5) = 300
a * b + 5 * a = 300
240 + 5a = 300
5a = 300 - 240
a = 60 : 5
a = 12
12 * b = 240
b = 240 : 12
b = 20

Answer 2

daca a*(b+5)=300 atunci reiese ca a*b+5*a=300
240+5a=300
5a=300-240=60 respectiv a=60/5=12 acum vom afla b stiind ca 12*b=240
reiese ca b=240/12=20