Question

Substitute the first equation into second and solve for x

Answer 1

The equations are

`y=x+4,x+5+y+5=24`

Substitute x+4 for y into the second equation

`x+5+x+4+5=24`

Solve for x

`\begin{gathered} 2x+14=24 \\ 2x=24-14 \\ 2x=10 \\ x=5 \end{gathered}`

Therefore the value of x is 5