Question

solve this system using elimination
x+y=7
x-y=3

Answer 1

x + y = 7
x - y = 3
----------add
2x = 10 -- divide by 2
x = 5
now sub 5 in for x in either of the equations to find y
x + y = 7
5 + y = 7
y = 7 - 5
y = 2
solution is (5,2)

Answer 2

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