Mister Exam
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How to use it?
- Equation:
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Equation 3*x^2=18*x
-
Equation 0*x=5
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Equation 5,23+x=-7,24
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Equation 12/x*10=13
- Express {x} in terms of y where:
- 10*x-18*y=-6
- 3*x-12*y=-14
- 16*x+11*y=-14
- -4*x+20*y=-14
- Sum of series:
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13
- Derivative of:
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13
- Canonical form:
- 13
-
Identical expressions
- twelve /x* ten = thirteen
- 12 divide by x multiply by 10 equally 13
- twelve divide by x multiply by ten equally thirteen
- 12/x10=13
- 12 divide by x*10=13
12/x*10=13 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation:
$$10 \frac{12}{x} = 13$$
Use proportions rule:
From a1/b1 = a2/b2 should a1*b2 = a2*b1,
In this case
so we get the equation
$$- \frac{x}{120} = - \frac{1}{13}$$
$$- \frac{x}{120} = - \frac{1}{13}$$
Divide both parts of the equation by -1/120
We get the answer: x = 120/13
$$10 \frac{12}{x} = 13$$
Use proportions rule:
From a1/b1 = a2/b2 should a1*b2 = a2*b1,
In this case
a1 = 1
b1 = -1/13
a2 = 1
b2 = -x/120
so we get the equation
$$- \frac{x}{120} = - \frac{1}{13}$$
$$- \frac{x}{120} = - \frac{1}{13}$$
Divide both parts of the equation by -1/120
x = -1/13 / (-1/120)
We get the answer: x = 120/13
Sum and product of roots
[src]
sum
120 --- 13
$$\frac{120}{13}$$
=
120 --- 13
$$\frac{120}{13}$$
product
120 --- 13
$$\frac{120}{13}$$
=
120 --- 13
$$\frac{120}{13}$$
120/13
The graph