Question

P=-4t+24p=3t-18solve the system using the subsition method if there is no solution put no solution if there is infinite solutions put infinite

Answer 1

Given system is

`\begin{gathered} 3t-18=p \\ -4t+24=p \end{gathered}`

Substuting

`p=3t-18`

in the second equation, we have,

`\begin{gathered} -4t+24=3t-18 \\ -4t-3t=-18-24 \\ -7t=-42 \\ t=6 \end{gathered}`

Then,

`\begin{gathered} p=3(6)-18 \\ =0 \end{gathered}`

So, the solution is

p=0,t=6