Question

Use substitution, addition/subtraction, or linear combinations to solve the linear system.
5g=3f+6
g-2f=46

Answer 1

Anyone?

Answer 2

the way i would start is by solving for either f or g in one of the equations.
g for the second one looks the easiest as there are no coefficients on it.

Answer 3

yeah..

Answer 4

after carrying over the 2f and getting g= 2f + 46 you can then substitute it into the first equation.

Answer 5

5(2f+46) = 3f + 6 ... distribute, solve for f and the plug it back in to find g.

Answer 6

\[\{f\to -32,g\to -18\} \]