Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^4+2*x^2-8=0
-
Equation 9-4x=3x-40
- Equation x-y=7
-
Equation 1/(x-2)^2-1/(x-2)-6=0
- Express {x} in terms of y where:
- 5*x-13*y=17
- 1*x+4*y=20
- 7*x-1*y=-7
- 10*x-18*y=3
- Integral of d{x}:
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2*x
- Derivative of:
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2*x
- Limit of the function:
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2*x
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Identical expressions
- - three *x- nine = two *x
- minus 3 multiply by x minus 9 equally 2 multiply by x
- minus three multiply by x minus nine equally two multiply by x
- -3x-9=2x
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Similar expressions
- x^2-2x-8=0
- 2x-3=4
- 4*(2x+3)-5*(5-4x)=(2-3x)*(-9)
- 4,72-2,5x=2x+2,92
- -3*x+9=2*x
- 6(-3x-9)=-30
- 2x^2-18=0
- |17-(3x-9)|==11
- 3*x-9=2*x
-3*x-9=2*x 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:
$$- 3 x = 2 x + 9$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = 9$$
Divide both parts of the equation by -5
We get the answer: x = -9/5
-3*x-9 = 2*x
Move free summands (without x)
from left part to right part, we given:
$$- 3 x = 2 x + 9$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = 9$$
Divide both parts of the equation by -5
x = 9 / (-5)
We get the answer: x = -9/5
Sum and product of roots
[src]
sum
-9/5
$$- \frac{9}{5}$$
=
-9/5
$$- \frac{9}{5}$$
product
-9/5
$$- \frac{9}{5}$$
=
-9/5
$$- \frac{9}{5}$$
-9/5
The graph