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How do you rewrite this equation so that y is a function of x -- 3x plus 5y equals 7?
Wiki User
∙ 16y ago
Because of the limitations of the question software, it was not possible to determine what the original equation was supposed to be, so we assumed it is 3x + 5y = 7. It could have just as easily been 3x - 5y = 7, or even 3x/5y = 7.
So, let's solve them all for x.
3x + 5y = 7
3x = 7 - 5y
x = (7 - 5y)/3
How about 3x - 5y = 7?
3x - 5y = 7
3x = 7 + 5y
x = (7 + 5y)/3
And 3x/5y = 7?
3x/5y = 7
3x = 35y
x = 35y/3 Solving for y The above equations wrote the equation so that x is a function of y, not the other way around. Here's how to rewrite the equation so that y is a function of x: 3x + 5y = 7 5y = -3x + 7 y = (-3x + 7)/5
Wiki User
∙ 16y ago
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