Question

X+u=15 and x was 5 what would it be

Answer 1

Answer: u = 10

Step-by-step explanation:

x+u=15

x=5

5+u=15

5-5+u=15-5

0+u=10

u=10

Answer 2

If x was 5 and x+u=15, then we can solve for u by subtracting 5 from both sides:

x+u = 15

5+u = 15

u = 10

Therefore, if x was 5 and x+u=15, then u would be 10.