Question

For what numbers a and b is the system of equations below satisfied by x=b and y=a?
x-5y=a
2x+2y=42

b =

a =

Answer 1

if i read this correctly that means you are to solve \[b-5a=a\\
2a+2b=42\]

Answer 2

thats where I messed up hahaha

Answer 3

the first can be written as \(b=6a\)
and the second as \(a+b=21\)

Answer 4

solve \(a+6a=21\) in your head, then find \(b\)

Answer 5

ok

Answer 6

a=3 b=18?