contestada

What is the first step in solving the system shows using the elimination method?
{3x-12y=5
{3x-y=9
A. Multiply each term in 3y - x = 9 by 12.
B. Multiply each term in 3y - x = 9 by -12,
C. Rewrite the equations so like variable terms are in the same order.
D. Add the corresponding sides of each equation.

Respuesta :

lucymattclark

Answer:

Step-by-step explanation:

I'm not sure what you mean by those steps mean but here is how I would answer using the elimination method:

3x - 12y = 5

minus (each term separately: 3x - 3x, -12y - -y, and 5 - 9)

3x - y = 9

This eliminates the 3x and = -11y = -4

You can then simplify from there and get y = 4/11

Otras preguntas