Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2*sin(x)=0
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Equation (x-5)^2-x^2=3
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Equation -2*(-y-2)-y-2=0
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Equation x^2+x=6
- Express {x} in terms of y where:
- -6*x+15*y=-13
- -17*x+14*y=11
- -11*x-3*y=-15
- 9*x-6*y=-20
- Limit of the function:
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3/10
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Identical expressions
- three / ten =- two / five *a
- 3 divide by 10 equally minus 2 divide by 5 multiply by a
- three divide by ten equally minus two divide by five multiply by a
- 3/10=-2/5a
- 3 divide by 10=-2 divide by 5*a
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Similar expressions
- -(2/5)*a-14=(3/10)*a
- 3/10=+2/5*a
3/10=-2/5*a equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without a)
from left part to right part, we given:
$$0 = - \frac{2 a}{5} - \frac{3}{10}$$
Move the summands with the unknown a
from the right part to the left part:
$$\frac{2 a}{5} = - \frac{3}{10}$$
Divide both parts of the equation by 2/5
We get the answer: a = -3/4
3/10 = -2/5*a
Move free summands (without a)
from left part to right part, we given:
$$0 = - \frac{2 a}{5} - \frac{3}{10}$$
Move the summands with the unknown a
from the right part to the left part:
$$\frac{2 a}{5} = - \frac{3}{10}$$
Divide both parts of the equation by 2/5
a = -3/10 / (2/5)
We get the answer: a = -3/4
Sum and product of roots
[src]
sum
-3/4
$$- \frac{3}{4}$$
=
-3/4
$$- \frac{3}{4}$$
product
-3/4
$$- \frac{3}{4}$$
=
-3/4
$$- \frac{3}{4}$$
-3/4