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Linear Algebra 8 Online
OpenStudy (anonymous):

40x + 30y = 3960 40x = 30y + 360

OpenStudy (anonymous):

Solving to find x then y

OpenStudy (anonymous):

please help!!!!!!

OpenStudy (kc_kennylau):

Have you tried substituting the second equation to the first? :)

OpenStudy (anonymous):

put the value of 40x from 2nd equation in first

OpenStudy (anonymous):

Not all that good with substituting :)

OpenStudy (kc_kennylau):

you could make 30y the subject of the second equation and substitute that :)

OpenStudy (anonymous):

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