A system of equations is shown below:

Equation A: 3c = d − 8
Equation B: c = 4d + 8

Which of the following steps should be performed to eliminate variable d first?

Multiply equation A by −4.
Multiply equation B by 3.
Multiply equation A by 3.
Multiply equation B by 4.

Question

A system of equations is shown below:

Equation A: 3c = d − 8
Equation B: c = 4d + 8

Which of the following steps should be performed to eliminate variable d first?

 Multiply equation A by −4.
 Multiply equation B by 3.
 Multiply equation A by 3.
 Multiply equation B by 4.

mathmale · Answer

Please don't say "I think it's B."  Instead, please show your work or give a clear explanation of how you arrived at y our answer.  Please.