Answer:
B. Exactly one solution
Step-by-step explanation:
The given equation is:
[tex]20z - 5 - 12z = 10z + 8[/tex]
We group like terms to get:
[tex]20z - 12z - 10z =8+ 5[/tex]
Combine like terms to get:
[tex] - 2z = 13[/tex]
Divide both sides by -2
[tex]z = - \frac{13}{2} [/tex]
The correct answer is B.