andrew2598 andrew2598

01-12-2019
Mathematics

contestada

How to solve system
X+y=10
X-y=2

Respuesta :

Yang100 Yang100

01-12-2019

Answer:

x=6, y=4. (6, 4).

Step-by-step explanation:

x+y=10

x-y=2

----------

x=y+2

y+2+y=10

2y+2=10

2y=10-2

2y=8

y=8/2=4

x+4=10

x=10-4=6

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