Question

Can someone pls help me . Thank you so much .THIRD PROBLEM

Answer 1

We have the expression:

`(F)/(-4)-1=-3`

Adding 1 on both sides, we get:

`\begin{gathered} (F)/(-4)-1+1=-3+1 \\ (F)/(-4)=-2 \end{gathered}`

Multiplying by -4 on both sides:

`\begin{gathered} (F)/(-4)(-4)=-2(-4) \\ F=8 \end{gathered}`