stormybrenizer stormybrenizer

23-02-2017
Mathematics

contestada

How to solve this using substitution. Y=3x and x+y=4

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pickemgirls pickemgirls

23-02-2017

plug 3x into the second equation and solve for x. then plug x into the first equation to solve for y.

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elsamelka elsamelka

23-02-2017

x+3x=4

4x=4

x=1

y means 3x so 3 times1
y will be 3

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