Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 0=-1-2x
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Equation ||x|-6|=4
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Equation z^2+6*z+5=0
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Equation -2x=0
- Express {x} in terms of y where:
- 5*x+4*y=9
- -9*x+8*y=-16
- -15*x+15*y=10
- 7*x-19*y=16
- -1-2x
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Identical expressions
- zero =- one -2x
- 0 equally minus 1 minus 2x
- zero equally minus one minus 2x
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Similar expressions
- 2^(x^2-1)-3^(x^2)=3^(x^2-1)-2^(x^2)+22*x^2+6*x+9=0
- 4-(9-2x)=4(x-1)-2(x+1)
- x*(3*x-1)-2*x*(x-2),x=-3
- 0=-1+2x
- 3(x-1)-2x=5(x-7)+12
- 0=+1-2x
0=-1-2x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$0 = - 2 x - 1$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = -1$$
Divide both parts of the equation by 2
We get the answer: x = -1/2
0 = -1-2*x
Move free summands (without x)
from left part to right part, we given:
$$0 = - 2 x - 1$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = -1$$
Divide both parts of the equation by 2
x = -1 / (2)
We get the answer: x = -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
The graph