A set of equations is given below:

Equation A: c = 2d + 1
Equation B: c = 3d + 5

Which of the following is a step that can be used to find the solution to the set of equations?

2d + 1 = 3d + 5
2d = 3d + 5
2d + 1 = 3d
2d + 5 = 3d + 1

plz help

Question

A set of equations is given below:

Equation A: c = 2d + 1
Equation B: c = 3d + 5

Which of the following is a step that can be used to find the solution to the set of equations?

 2d + 1 = 3d + 5
 2d = 3d + 5
 2d + 1 = 3d
 2d + 5 = 3d + 1

plz help

nitroster · Answer

The answer is the first one... "2d + 1 = 3d + 5" because they plugged in equation A for equation B to find d. Once finding d, they can put in d for Equation A to find C.