Question

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

Answer 1

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

Explanation:

x+y=10

x-y=2

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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