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Judith Barry
Mathematics
9 September, 00:33
What is the sum of 5x*2 + 3x-7 and 12x+12
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Julian Harvey
9 September, 00:50
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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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