01-03-2014
Mathematics

contestada

3x+y=4
2x+y=5
solve using linear combination

Respuesta :

wacko37 wacko37

01-03-2014

Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7

Answer Link

alextors21 alextors21

06-02-2020

Answer:

(-1,7)

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Answer Link

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