Set up equation: Set up the equation from the problem.We have the equation (2p+1)/(5p+6)=1/7. We need to solve for p.
Cross-multiply: Cross-multiply to eliminate the fractions.Cross-multiplying gives us 7(2p+1)=1(5p+6).
Distribute numbers: Distribute the numbers on both sides of the equation.This gives us 14p+7=5p+6.
Move terms: Move all terms containing p to one side and constant terms to the other side.Subtract 5p from both sides to get 14p−5p+7=6.Subtract 7 from both sides to get 14p−5p=6−7.
Simplify equation: Simplify both sides of the equation.This gives us 9p=−1.
Solve for p: Solve for p by dividing both sides by 9.Dividing by 9 gives us p=−91.
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