katie276 katie276

22-11-2017
Mathematics

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What is the solution to x-4y=-5 and -x+6y=7

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choixongdong choixongdong

22-11-2017

x - 4y = -5
-x + 6y = 7
---------------add
2y = 2
y = 1

x - 4y = -5
x - 4(1) = -5
x - 4 = -5
x = -1

answer
x = -1 and y = 1

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