Answer:y = 160
Explanation:
The given equation is expressed as
-80 + y = 80
It is a linear equation with only one variable. The variable is y. The constants on the left hand side of the equation and the right hand side of the equation are - 80 and 80 respectively. To determine the value of the variable, y, we would eliminate the constant on the left hand side of the equation by adding 80 to the left hand side of the equation and the right hand side of the equation. It becomes
-80 + 80 + y = 80 + 80
0 + y = 160
y = 160