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Mathematics 13 Online
OpenStudy (anonymous):

subsitution method 6x-4=-44 8x+89=y help please

OpenStudy (anonymous):

You have two equations. The first only has one variable, x. That means you can solve for x.

OpenStudy (anonymous):

next take this value of x and 'substitute' it in to the second equation

OpenStudy (anonymous):

6x-4=-44 6x=-40 x=-(20/3)

OpenStudy (anonymous):

Use this value of x in the equation y=8x+89

OpenStudy (anonymous):

you will find that y=69

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