Respuesta :
first simplify the equations to make it easier.
2a-b=5
a-2b=1
a=1+2b
plug that into the first equation.
2+4b-b=5
b=1
a=3
3-1=2 your answer therefore is 2.
2a-b=5
a-2b=1
a=1+2b
plug that into the first equation.
2+4b-b=5
b=1
a=3
3-1=2 your answer therefore is 2.
