Question

Challenge: Solve the equation 0.3z = 2.10 for z. Which of these equations has the same solution?

Z-14.92 = 7.92
z + 7.92 = 14.92
Z-7.92 = 14.92
Z + 14.92 = 7.92

Answer 1

`{ \boxed{z + 7.92 = 14.92}}`

Explanation:

`0.3z = 2.10 \\ \\ z = (2.10)/(0.3) \\ \\ { \underline{z = 7}}`