Răspuns :
a*b=36
(a+7)*b=99
ab+7b=99
36+7b=99
7b=99-36
7b=63
b=63/7
b=9
9a=36
a=36/9
a=4
sper ca te-am ajutat
a*b=36
(a+7)*b=99
a*b+7*b=99
36+7b=99
7b=99-36=63
b=63/7=9
b=9
9a=36
a=36/9=4
a=4 b=9
(a+7)*b=99
a*b+7*b=99
36+7b=99
7b=99-36=63
b=63/7=9
b=9
9a=36
a=36/9=4
a=4 b=9