How do you solve the system of equations #8y - 5x = 79# and #5y = 4x + 45#?

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Answer 1 · 2018-05-06T23:11:14

The answer #y=13#
#x=5#

show below

#8y - 5x = 79#........(1)

#5y = 4x + 45#............(2)

hit the (2) by 8

#5(8y)=32x+360#.....(3)

rewrite (1) in the form

#8y=79+5x#......(4)

now put 4 in 3

#5(79+5x)=32x+360#

#395+25x=32x+360#

#7x=35#

#x=5#

#8y=79+25#

#8y=104#

#y=13#