Question

4(r+3)=t, for r

Answer 1

To solve for r, you need to go through order of operations. \[\frac{ 4(r+3) }{ 4 }=\frac{t}{4}\]
\[r+3=\frac{ t }{ 4 }\]
then subtract 3 from each side
\[r=\frac{ t }{ 4 }-3\]
you can use this and plug it back into the equation for r and solve t and then once you find the exact number for t, you can plug that into this equation to find the exact number for r.