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OpenStudy (anonymous):
how do you make y a function of x when 4.2x-2y=16.8? would it be -2y=16.8 -4.2x
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OpenStudy (anonymous):
nearly divide thru by -2: so y = -8.4 + 2.1x
OpenStudy (anonymous):
ohh ok so you compleatly isolate y.
OpenStudy (anonymous):
right
OpenStudy (anonymous):
so if 8x-5x+21=36-6y, its y=2x-15? sorry this is the last q
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