reciprocal reciprocal

26-03-2017
Mathematics

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Can someone show me the workings out for each of these three questions

Can someone show me the workings out for each of these three questions class=

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TheHero TheHero

27-03-2017

(c) 5p + 7 = 12 - 3p

8p = 5

p = 5/8 = 0.625

5. (a)

7p + 2 = 5p + 8

2p = 6

p = 3

(b) 7r + 2 = 5r - 20

2r = -22

r = -11

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