Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 15*x^2-4*x-3=0
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Equation 7*x=6
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Equation x^3-x^2-6*x=0
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Equation (x+3)-17=-20
- Express {x} in terms of y where:
- -19*x-4*y=-7
- -1*x+1*y=-13
- 13*x-7*y=8
- -20*x-20*y=11
- Integral of d{x}:
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7x
- Canonical form:
- 7x
- Derivative of:
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7x
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Identical expressions
- 7x=- ninety-five , four -2x
- 7x equally minus 95,4 minus 2x
- 7x equally minus ninety minus five , four minus 2x
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Similar expressions
- 7x=-95,4+2x
- 7x=+95,4-2x
- 2*x^2+7*x-4=0
- 7*x=6
7x=-95,4-2x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the right part
Move the summands with the unknown x
from the right part to the left part:
$$9 x = - \frac{477}{5}$$
Divide both parts of the equation by 9
We get the answer: x = -53/5
7*x = -(477/5)-2*x
Expand brackets in the right part
7*x = -477/5-2*x
Move the summands with the unknown x
from the right part to the left part:
$$9 x = - \frac{477}{5}$$
Divide both parts of the equation by 9
x = -477/5 / (9)
We get the answer: x = -53/5
Sum and product of roots
[src]
sum
-53/5
$$- \frac{53}{5}$$
=
-53/5
$$- \frac{53}{5}$$
product
-53/5
$$- \frac{53}{5}$$
=
-53/5
$$- \frac{53}{5}$$
-53/5
The graph