Question

Solve using substitution y = 4 - 2x + 4y = 12

Answer 1

The value of x is 2 and of y is 4

`(2,4)`

Explanation:

We have the following equation system

`\begin{gathered} y=4 \\ -2x+4y=12 \end{gathered}`

solving for substitution:

`\begin{gathered} -2x+4\cdot4=12 \\ -2x+16=12 \\ -2x=12-16 \\ x=(-4)/(-2) \\ x=2 \end{gathered}`