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12-01-2018
Mathematics

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-3x -4y =-1 and 3x-y=-4 ( elimination)

3x 4y 1 and 3xy4 elimination class=

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cdw2014 cdw2014

12-01-2018

Think of it as a subtraction problem.

-3x -4y = -1
3x - y = -4
_________
0x -5y = -5

y = -5/-5 = 1

Plug 1 in for y in either of the equations

3x -1 = -4
3x = -3
x = -1

Answer: (-1, 1)

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