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Mathematics 11 Online
OpenStudy (anonymous):

solve: 3x+y=9 4x-3y=-1

OpenStudy (anonymous):

are u solvng for x and y?

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

y = 9-3x 4x-3(9-3x) = -1 (=) x =2 y = 3

OpenStudy (anonymous):

for (x) u multiply the top equation by 4 and the boottom equation by 3 in order to cancle out the x value and solve for the y value

OpenStudy (anonymous):

then for soling for (y) multiply the top equation by 3 and and solve for x :)

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