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?

Answer 1

Equation B tells you what c equals
so we sub in c for where it says 3c
\[\huge ~\rm~3(4d+8)=d-8\]

Answer 2

Distribute the 3
\[\huge ~\rm~3(4d+8)\]

Answer 3

A system of equations is shown below: n = 3m + 7 n − 2m = 1 What is the solution, in the form (m, n), to the system of equations?

Answer 4

It tells you what n equals
3m+7-2m=1
combine like terms to get the m value

Answer 5

(-6,-11)?