# Answer to Question #7431 in Algebra for Bryan

Question #7431

system of simultaneous equations by the addition method.

x+y=1

x-y=-7

whats my solution?

x+y=1

x-y=-7

whats my solution?

Expert's answer

x+y=1

x-y=-7

Let'sadd the equations:

2x=-6

whence x=-3

from the first equation of the system we get y=1-x

whence y=1-(-3)=4

x-y=-7

Let'sadd the equations:

2x=-6

whence x=-3

from the first equation of the system we get y=1-x

whence y=1-(-3)=4

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