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Nataly [62]
3 years ago
10

3u = 14 - 4u what number is the variable?

Mathematics
2 answers:
Harrizon [31]3 years ago
5 0
What you want to do is isolate the variable. Take your equation 3u=14-4u and move the -4u over to the other side; making it look like this 7u=14. Then divide by 7 to isolate the u making u=2. Your answer is u=2.
Alecsey [184]3 years ago
5 0
3u = 14 - 4u
+4u          +4u

7u = 14
/7       /7

u = 2.~~~
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