69+(87-n)=103

To solve this equation, we need to simplify and isolate the variable "n".

First, distribute the -1 to the terms inside the parentheses: 69 + 87 - n = 103

Combine like terms: 156 - n = 103

Next, isolate the variable "n" by subtracting 156 from both sides of the equation: -n = 103 - 156 -n = -53

Multiply both sides by -1 to isolate "n" and make it positive: n = (-1) * (-53) n = 53

So the solution to the equation 69 + (87 - n) = 103 is n = 53.