22-02-2019
Mathematics

contestada

What should be the first step in adding these questions to eliminate y

What should be the first step in adding these questions to eliminate y class=

Respuesta :

Ashraf82 Ashraf82

22-02-2019

Answer:

The answer is B multiply the bottom equation by 2

Step-by-step explanation:

3x + 4y = 8

6x - 2y = 9

By multiplying the bottom equation by 2 it will be

12x - 4y = 18 ⇒ add this with the first equation

4y + -4y = 0 so y is eliminated

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