Question

Which method (graphing, substitution or elimination) would you use to solve the system of equations x= y + 11 and 2x + y = 19 and why.

Answer 1

We have the next equation system

$\begin{gathered} x=y+11 \\ 2x+y=19 \end{gathered}$

we will use substitution because one of the equations given have isolated the x, so we can substitute the value of x of the first equation and substitute this value in the second equation