How do you solve this system of equations #2x - 4y = - 24 , 3x + 4y = 4#?

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Answer 1 · 2018-05-03T09:39:35

Add these two to find x first. Your solution: #x=-4# and #y=4#

#2x - 4y = -24#

#3x + 4y = 4#

After summing them up:

#2x + 3x - 4y + 4y = -24 + 4#

#5x = -20#

#x = -20/5 = -4#

Now y can be computed:

#4y = 4 - 3x#

#4y = 4 -(3times-4)#

#4y = 4 + 12#

#y = 16/4 = 4#