Question

afla necunoscuta.
45-27+(6*a)=42
AJUTOR!!!!

Answer 1

45-27+6a=42
6a=42+27-45
a=24:6
a=4

Answer 2

45-27+(6•a)=42
18+(6•a)=42-18
6•a=24:6
a=4
Sper ca te-am ajutat... bafta la teme!