How do you solve the system of equations #3x - 2y = 7# and #-3x + 5y = 5#?

Question

867 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-12-14T21:06:21

#x = 5#
#y = 4#

#3x - 2y = 7#
#-3x + 5y = 5#

add equations:

#0 + 3y = 12#
#3y = 12#

divide by 3:

#y = 4#

-
#3x - 2y = 7#

#3x - 8 = 7#

add 8:

#3x = 15#

divide by 3:

#x = 5#