Disclaimer: okay don't judge cuz I am dumb
Question: Write 3 (algebraic) equations that you know have the same solution (Explain how you know!)
And...
An expression decreases in value by 5 if x increases in value by 1. What could the expression be?
To get three equations with the same solution -- start with the answer that you want, say 3.
1) 2x = 6
2) x + 1 = 4
3) x - 1 = 2
An expression that decreases by 5 if x increases by 1
-5x
if x = 1, -5x = -5
if x = 2, -5x = -10
if x = 3, -5x = -15
etc.