Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x+7)*(x-1)=0
-
Equation x/3+x/4=-21
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Equation sin(x)=0
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Equation x^3-9*x=0
- Express {x} in terms of y where:
- -2*x+4*y=3
- 3*x-17*y=-6
- 2*x+10*y=-10
- 3*x-2*y=-9
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Identical expressions
- thirty-four , five +2x=7x+ eight , five
- 34,5 plus 2x equally 7x plus 8,5
- thirty minus four , five plus 2x equally 7x plus eight , five
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Similar expressions
- 34,5-2x=7x+8,5
- 34,5+2x=7x-8,5
34,5+2x=7x+8,5 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
Expand brackets in the right part
Move free summands (without x)
from left part to right part, we given:
$$2 x = 7 x - 26$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = -26$$
Divide both parts of the equation by -5
We get the answer: x = 26/5
(69/2)+2*x = 7*x+(17/2)
Expand brackets in the left part
69/2+2*x = 7*x+(17/2)
Expand brackets in the right part
69/2+2*x = 7*x+17/2
Move free summands (without x)
from left part to right part, we given:
$$2 x = 7 x - 26$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = -26$$
Divide both parts of the equation by -5
x = -26 / (-5)
We get the answer: x = 26/5
Sum and product of roots
[src]
sum
26/5
$$\frac{26}{5}$$
=
26/5
$$\frac{26}{5}$$
product
26/5
$$\frac{26}{5}$$
=
26/5
$$\frac{26}{5}$$
26/5