Question

Bianca wrote the steps for her solution to the equation 2.3 + 8(1.3x – 4.75) = 629.9. She left out the description for the last step.
What is the missing step of her solution?

A: Add 10.4 to both sides.
B: Add negative 10.4 to both sides.
C: Multiply both sides of the equation by 10.4.
D: Divide both sides of the equation by 10.4.

Answer 1

2.3+8(1.3x-4.75)=629.9
2.3+10.4x-38=629.9
-35.7+10.4x=629.9
10.4x=665.6
x=64

The last step was --> D. Divide both sides of the equation by 10.4

Answer 2

Answer:

d.  Divide both sides of the equation by 10.4.

Step-by-step explanation: just took the test