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Mathematics 15 Online
OpenStudy (anonymous):

how would i solve this system of equations by using the addition method, 5x+4y=12 and 7x-6y=40.

OpenStudy (amistre64):

multiply the top by -7, and the bottom by 5; this will cancel the x values and allow you to solve for the y

OpenStudy (amistre64):

i spose top and bottom are not relevant to this since they are more left and right in the post :/

OpenStudy (amistre64):

we could just as well multiply the "top" by 6 and the "bottom" by 4 to get "like terms" on the ys to cancel.

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