Solve for t 28=t(r+4)

Please help me Solve for t    28=t(r+4)
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Divide both sides by r+4: 28/(r+4)=t, so t=28/(r+4). The only value of r you can't get t for is r=-4 because the fraction becomes infinitely big. To see all values of t you need to plot t against r on a graph.

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