1. Is -7+9=-9+7 true, false, or open? (1 point)
2 answers:
1. Is false
It is false because -7+9 equal 2 and -9+7 equal -2
Problem 1
-7+9 is the same as 9+(-7) or 9-7. All of which simplify to 2.
On the other hand, -9+7 is the same as 7+(-9) or 7-9, which simplifies to -2.
Therefore the equation -7+9 = -9+7 becomes 2 = -2, and we can see this is a false equation.
<h3>Answer: false</h3>
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Problem 2
Your second question has some weird typo errors going on. Please update.
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Step-by-step explanation:
can you show the picture too please
The third one is true
because 3 is subtracted from a number.if you say that a number subtract from 3 it will be:
3–x
good luck
Answer:
5/14
Step-by-step explanation:
let the aaded no be x
3/14 + x = 4/7
x = 4/7-(3/14)
x = 5/14
here added no is 5/14
Answer:
4a+6b
Step-by-step explanation:
4a -2a +6b +2a
Combine like terms
4a-2a+2a+6b
4a+6b
Answer:
True
Step-by-step explanation:
· 10 = 30
30 = (3 · 5) + (3 · 5)
30 = (15) + (15)
30 = 30
True
