Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 0,6-1,6(x-4)=3(7-0,4x)
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Equation 4^(x-1/2)-6*2^(x-1)+3=0
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Equation x^3+3x^2-4x-12=0
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Equation sin(x+1)=0
- Express {x} in terms of y where:
- sqrt(1-x)^2+(4-y)^2=0
- lnx+sin(y/x+2x)=4
- cos(x-y)+(4-y)/(x^2)+ln(1-x^2)+tg2y+2=0
- y^t=(y/x)^2+(y/x)+4
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Identical expressions
- 3y- two (two +y)=3y- five
- 3y minus 2(2 plus y) equally 3y minus 5
- 3y minus two (two plus y) equally 3y minus five
- 3y-22+y=3y-5
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Similar expressions
- 3y-2(2+y)=3y+5
- 3y-2(2-y)=3y-5
- 3y+2(2+y)=3y-5
3y-2(2+y)=3y-5 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without y)
from left part to right part, we given:
$$y = 3 y - 1$$
Move the summands with the unknown y
from the right part to the left part:
$$\left(-2\right) y = -1$$
Divide both parts of the equation by -2
We get the answer: y = 1/2
3*y-2*(2+y) = 3*y-5
Expand brackets in the left part
3*y-2*2-2*y = 3*y-5
Looking for similar summands in the left part:
-4 + y = 3*y-5
Move free summands (without y)
from left part to right part, we given:
$$y = 3 y - 1$$
Move the summands with the unknown y
from the right part to the left part:
$$\left(-2\right) y = -1$$
Divide both parts of the equation by -2
y = -1 / (-2)
We get the answer: y = 1/2
Sum and product of roots
[src]
sum
1/2
$$\frac{1}{2}$$
=
1/2
$$\frac{1}{2}$$
product
1/2
$$\frac{1}{2}$$
=
1/2
$$\frac{1}{2}$$
1/2