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20-01-2020
Mathematics

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What is the sum of 5x*2 +3x-7 and 12x+12

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20-01-2020

Answer:25x + 5

Step-by-step explanation:

(5x * 2 + 3x - 7) + (12x +12)

= (10x +2x - 7) + (12x + 12)

= (13x - 7) + (12x + 12)

Expand the brackets

= 13x - 7 + 12x + 12

Join like terms together

= 13x + 12x + 12 - 7

= 25x + 5

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