Question

Y = 1/4xx + 4y = 8Solve each system of equations algebraically use substitution

Answer 1

$\begin{gathered} \begin{bmatrix}y=\frac{1}{4}x \\ x+4y=8\end{bmatrix} \\ x+4\cdot\frac{1}{4}x=8 \\ x+x=8 \\ 2x=8 \\ \frac{2x}{2}=\frac{8}{2} \\ x=4 \end{gathered}$

for y

$y=\frac{1}{4}x=\frac{1}{4}(4)=1$

solution

x = 4

y = 1