rossce0610 rossce0610

11-09-2019
Mathematics

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jimrgrant1 jimrgrant1

11-09-2019

Answer:

see explanation

Step-by-step explanation:

(a)

AC = AB + BC ← substitute values

AC = x + 2 + 7x - 3 = 8x - 1

(b)

QR = PR - PQ ← substitute values

QR = 13y + 25 - (8y + 5) ← distribute parenthesis by - 1

= 13y + 25 - 8y - 5 = 5y + 20

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