Mister Exam
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How to use it?
- Equation:
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Equation x^2+7*x+12=0
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Equation 12/x=3
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Equation 7x-9=40
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Equation (x-2)^2=(x-8)^2
- Express {x} in terms of y where:
- -6*x-11*y=-20
- -15*x+7*y=1
- -1*x-20*y=1
- -1*x-15*y=13
- Derivative of:
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12/x
- Graphing y =:
- 12/x
- Limit of the function:
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12/x
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Identical expressions
- twelve /x= three
- 12 divide by x equally 3
- twelve divide by x equally three
- 12 divide by x=3
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Similar expressions
- 6*(x+1)*(1+(x+1)^2/x^2-2*(x+1)/x)/x^2=0
12/x=3 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation:
$$\frac{12}{x} = 3$$
Use proportions rule:
From a1/b1 = a2/b2 should a1*b2 = a2*b1,
In this case
so we get the equation
$$- \frac{x}{12} = - \frac{1}{3}$$
$$- \frac{x}{12} = - \frac{1}{3}$$
Divide both parts of the equation by -1/12
We get the answer: x = 4
$$\frac{12}{x} = 3$$
Use proportions rule:
From a1/b1 = a2/b2 should a1*b2 = a2*b1,
In this case
a1 = 1
b1 = -1/3
a2 = 1
b2 = -x/12
so we get the equation
$$- \frac{x}{12} = - \frac{1}{3}$$
$$- \frac{x}{12} = - \frac{1}{3}$$
Divide both parts of the equation by -1/12
x = -1/3 / (-1/12)
We get the answer: x = 4
The graph