Question

What value of n makes the equation true?

-1/5n+7=2
n=

Answer 1

$\frac{ - n}{5} + 7 = 2 \\ \\ \frac{ - n + 35}{5} = 2 \\ \\ - n + 35 = 10 \\ \\ - n = 10 - 35 \\ \\ - n = - 25$

cancel (-) sign both sides ,

$n = 25.$