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Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7.

(A): Multiply the first equation by 4.
(B): Add the first equation to the second equation.
(C): Multiply the second equation by Negative 1.
(D): Subtract the second equation from the first equation.

Respuesta :

haleluyatibebu693

Answer:

c

Step-by-step explanation:

cause it is short and easy + it is the 1st step the add the 2 equations

mhanifa

Answer:

  • (B) Add the first equation to the second equation

----------------------------

Given system:

  • x + y = 3,
  • 4x - y = 7.

The easiest first step is adding up the two equations that would eliminate y.

This is matching the second answer choice.

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