Mister Exam
Other calculators
-
How to use it?
- Equation:
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Equation x^2-21=4x
-
Equation x^2-13*x=0
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Equation 6^x=1
- Equation x^3+6*x^2-x-6=0
- Express {x} in terms of y where:
- 19*x-7*y=2
- -3*x+3*y=10
- 3*x-15*y=-9
- 6*x-13*y=-19
- Sum of series:
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13
- Derivative of:
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13
- Canonical form:
- 13
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Identical expressions
- two (one -3x)= thirteen
- 2(1 minus 3x) equally 13
- two (one minus 3x) equally thirteen
- 21-3x=13
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Similar expressions
- 3x(x-21)-3(x+14)=23
- 5*(2x-3)+7=4x-2*(1-3x)
- 2(1+3x)=13
- 21-3*x^2=0
- 7x-(21-3x)=4
2(1-3x)=13 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
Move free summands (without x)
from left part to right part, we given:
$$- 6 x = 11$$
Divide both parts of the equation by -6
We get the answer: x = -11/6
2*(1-3*x) = 13
Expand brackets in the left part
2*1-2*3*x = 13
Move free summands (without x)
from left part to right part, we given:
$$- 6 x = 11$$
Divide both parts of the equation by -6
x = 11 / (-6)
We get the answer: x = -11/6
Sum and product of roots
[src]
sum
-11/6
$$- \frac{11}{6}$$
=
-11/6
$$- \frac{11}{6}$$
product
-11/6
$$- \frac{11}{6}$$
=
-11/6
$$- \frac{11}{6}$$
-11/6
The graph