Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2-6x-27=0
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Equation x^2=-3
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Equation -20+2x=18
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Equation 3x-14=2x
- Express {x} in terms of y where:
- -3*x+19*y=16
- 8*x-16*y=14
- 11*x+8*y=-16
- 17*x-19*y=-12
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Identical expressions
- seven - four (6x- two)= three
- 7 minus 4(6x minus 2) equally 3
- seven minus four (6x minus two) equally three
- 7-46x-2=3
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Similar expressions
- 7-4(6x+2)=3
- 7+4(6x-2)=3
7-4(6x-2)=3 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
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 24 x = -12$$
Divide both parts of the equation by -24
We get the answer: x = 1/2
7-4*(6*x-2) = 3
Expand brackets in the left part
7-4*6*x+4*2 = 3
Looking for similar summands in the left part:
15 - 24*x = 3
Move free summands (without x)
from left part to right part, we given:
$$- 24 x = -12$$
Divide both parts of the equation by -24
x = -12 / (-24)
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