Is there a commutative property of subtraction that states a-b=b-a? investigate and make a conclusion that you justify.
1 answer:
No is your answer
Assuming that b ≠ a, the answers will not be the same.
For example, (remembering that b ≠ a) let us assume that b = 10, a = 5
10 - 5 = 5
5 - 10 = -5
5 ≠ -5
So the commutative property of subtraction does not work unless in certain cases, in which a = b.
hope this helps
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Answer:
24
Step-by-step explanation:
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4(1+5)
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24
X - (-20) = 5
When you subtract a negative, change it to addition:
X + 20 = 5
Subtract 20 from both sides:
X = -15
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Hi Brainiac
x² - 4 = 0
Add 4 to both sides
x² - 4 + 4 = 0 + 4
x² = 4
Now take the square root
x= +/-√4
x= 2 or x= -2
The answer is A
I hope that's help :)
