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Mathematics
Speedo
19 October, 11:58
What is the answer for this question
3 (a-7) = 6a
+1
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Dahlia Barker
19 October, 12:36
0
The answer to this is - 7
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Lia Rubio
19 October, 13:29
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Answer:a=-7
Step-by-step explanation:The given equation is 3 (a-7) = 6a
Using distributive rule we have:
3a-21=6a
21 is subtracted to 3a. We always perform the opposite operation both sides.
Opposite of subtraction is addition
Adding 21 both sides
3a=6a+21
Subtracting 6a both sides:
3a-6a=21
-3a=21
Dividing both sides by - 3 we have
a=-7.
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