Question

How many solutions does they equation 4s + 8 = 3 + 5 + 4s have?

Answer 1

4s+8=3+5+4s => 4s+8= 8+ 4s => 0=0
Infinite solutions
Solution set Is R (all real numbers)

Seriously, try any value instead of s
The left hand side equation will always be equal to the right hand side

Answer 2

solve
if we get a true statement, like s=s or 0=0, then there are infinite solutions because the variables can cancel out


4s+8=3+5+4s
4s+8=8+4s
minus 8 both sides
4s=4s
true we can see but if we wanted to
minus 4s both sides
0=0
true
infinite soltions