algebra
posted by babs on .
solve by substitution 2x+6y=30 9x+y=61

in the second, y= 61+9x
put that in for y in the first equation, solve for x.
I will be happy to critique your work.
posted by babs on .
solve by substitution 2x+6y=30 9x+y=61
in the second, y= 61+9x
put that in for y in the first equation, solve for x.
I will be happy to critique your work.