solve -x + y = -4, x + y = 0

Question

x = 2 and y = -2.  I need to show how to get there

Answer 1

-x + y = -4 --- (1)
x + y = 0 --- (2)

From (2), we have:

y = -x --- (3)

Substituting (3) into (1), we will get:

-x + (-x) = -4
-2x = -4
x = -4 / -2
x = 2

Substituting x = 2 into (3), we will get:

y = -2

Hence, x = 2 and y = -2

Comments

Thank you SO much!!!!!  My son and I appreciate your help.  I don't remember everything from Algebra class years ago---your answer jogged my memory!  Thanks again.  It's so cool when it comes together in your mind.