Solve for p? 7/p = 8/9 people, please help me I am desperate

2 Answers

p is 63/8

Explanation:

times both sides by p
times both sides by 9
divide both sides by 8

Apr 8, 2018

p=63/8

Explanation:

Solve:

7/p=8/9

Multiply both sides by p.

pxx7/p=8/9xxp

Cancel p on the left-hand side.

color(red)cancel(color(black)(p))^1xx7/color(red)cancel(color(black)(p))^1=8/9xxp

Simplify.

7=(8p)/9

Multiply both sides by 9.

9xx7=(8p)/9xx9

Cancel 9 on the right-hand side.

9xx7=(8p)/color(red)cancel(color(black)(9))^1xxcolor(red)cancel(color(black)(9))^1

Simplify.

63=8p

Divide both sides by 8.

63/8=(color(red)cancel(color(black)(8))^1p)/color(red)cancel(color(black)(8))^1

Simplify.

63/8=p

Switch sides.

p=63/8