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14 July, 10:47
How do you solve 7u-5u=4?
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Autumn Benitez
14 July, 11:28
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u = 2
Step-by-step explanation:
7u - 5u = 4
When you have two terms with the same variable, you can subtract their coefficients.
7u - 5u = 4
This is because 7u = u + u + u + u + u + u + u and 5u = u + u + u + u + u.
So if you did this:
(u + u + u + u + u + u + u) - (u + u + u + u + u) = u + u
You would still get the same answer; the other one is just a less repetitive way to express it.
7u - 5u = 4
2u = 4
Now you divide both sides by 2.
(2u) / 2 = 4/2
u = 2
And end up with u = 2!
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Mikayla Chavez
14 July, 13:15
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Answer:u=2
Step-by-step explanation:
7u-5u=4
2u=4
u=2
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