graciebrittain graciebrittain

23-01-2018
Mathematics

contestada

Solve for x:

(Math 2) Please help asap!

Solve for x Math 2 Please help asap class=

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choixongdong choixongdong

23-01-2018

6x + y = x + 5y
5x = 4y

4x + 6x + y = 180
10x + y = 180 so y = 180 - 10x

substitute y = 180 - 10x into 5x = 4y
5x = 4y
5x = 4(180 - 10x )
5x = 720 - 40x
45x = 720
x = 16

answer A.
x = 16

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