Question

How do you solve `3+ \frac{1}{x + 1} = \frac{4x}{x + 1}`?

Answer 1

x = 4

Explanation:

Bring the equation to standard form:
`y = (3(x + 1))/(x + 1) + 1/(x + 1) - (4x)/(x + 1) = 0`
3x + 3 + 1 - 4x = 0 (condition x different to -1)
-x = -4
x = 4
Check with x = 4
3 + 1/5 = 16/5 OK.