3 years ago

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

2 answers:

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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