The given equation is:

It is required to identify the next step in the equation.
To find Z, the next step is to reduce the fraction.
To do this, divide both the numerator and denominator by 5:

The next step is to reduce the fraction to solve for Z.
Answer:
oof thats hard
Step-by-step explanation:
I only know D. but I'll try to figure out the rest too. D. 9 years old
Answer
Hola la respuesta que buscas es bastante simple pero no lo sé
Step-by-step explanation:
Answer:
C) Infinitely many
Step-by-step explanation:
7x+3-x=3(1+2x)
6x+3=3+6x
Subtract 3 from both sides
6x = 6x
Infinitely many solutions