Question

how many solutions does this equation have?
-7s = 2s - 9s
no solution
one solution
infinitely many solutions

Explanation:

Step1: Simplify the right side

Combine like terms on the right: \(2s - 9s = -7s\)

Step2: Compare both sides

Now the equation is \(-7s = -7s\). This is true for any value of \(s\), so there are infinitely many solutions.

Answer:

infinitely many solutions