To solve the equation \( 15 + z = 7 \), you need to isolate \( z \). 1. Subtract 15 from both sides of the equation: \[ z = 7 - 15 \] 2. Simplify the right side: \[ z = -8 \] So, the solution is \( z = -8 \).

15+z=7

1 answer

To solve the equation \( 15 + z = 7 \), you need to isolate \( z \).

Subtract 15 from both sides of the equation: \[ z = 7 - 15 \]
Simplify the right side: \[ z = -8 \]

So, the solution is \( z = -8 \).