Question

Ajutor!!
a+b=59
a:(bx3)=2 r 17
r=rest

Answer 1

a+b=59
a:(b×3)=2 r 17
a:3b=2 r 17
a=3b×2+17
a=6b+17
6b+17+b=59
6b+b=59-17
7b=42
b=42:7
b=6
a=6b+17
a=6×6+17
a=36+17
a=53

Answer 2

a+b=59
a:3b=2r17=>a=6b+17
6b+17+b=59
7b=59-17=>b=42:7=>b=6
a=6x6+17=>a=53