Question

Find the domain for the expression: y/y-5 + 1/y+8

Answer 1

Answer:

1/y+4

Step-by-step explanation:

1-5+1/y+8

1/y+(1-5+8)

1/y+4

Answer 2

$\frac{y}{y} - 5 + \frac{1}{y} + 8$

→$(1 - 5) + \frac{1}{y} + 8$

→$-4 = \frac{ - 4}{1} = \frac{ - 4 \: • \: y}{y}$

→$\frac{ - 4 \: • \: y + 1}{y} = \frac{1 - 4y}{y}$

→$\frac{(1 - 4y)}{y} + 8$

→$8 = \frac{8}{1} = \frac{8 \: • \: y}{y}$

→$\frac{(1 - 4y) + 8 \: • \: y}{y} = \frac{4y + 1}{y}$

→$\frac{4y + 1}{y}$