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Mathematics 22 Online
OpenStudy (anonymous):

a system of linear equations is shown below. 5x=3y-2 y=x+4 what is the x -coordinate of the solution? A.2 B.4 C.5 D.1

OpenStudy (campbell_st):

well substitute the 2nd equation into the 1st equation 5x = 3(x + 4) - 2 distribute and then solve for x

OpenStudy (anonymous):

wot

OpenStudy (campbell_st):

lol...well multiply everything inside the brackets by the 3 outside the brackets 5x = 3x + 12 - 2 or 5x = 3x + 10 now solve for x

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