Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 5^x=8^x
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Equation -27x+220=-5x
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Equation x+12=5
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Equation 3/(x-5)+8/x=2
- Express {x} in terms of y where:
- 12*x+1*y=15
- -16*x-10*y=4
- 10*x-6*y=9
- -20*x+14*y=16
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Identical expressions
- two (seven +9x)=-6x+ two
- 2(7 plus 9x) equally minus 6x plus 2
- two (seven plus 9x) equally minus 6x plus two
- 27+9x=-6x+2
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Similar expressions
- 2(7+9x)=+6x+2
- 2(7+9x)=-6x-2
- 500*10^(-6)(x+2)^2-(15*20/930-x)/1000=0
- x^3-6*x+2=0
- -6*(x+2)=4*x+17
- 2(7-9x)=-6x+2
2(7+9x)=-6x+2 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:
$$18 x = - 6 x - 12$$
Move the summands with the unknown x
from the right part to the left part:
$$24 x = -12$$
Divide both parts of the equation by 24
We get the answer: x = -1/2
2*(7+9*x) = -6*x+2
Expand brackets in the left part
2*7+2*9*x = -6*x+2
Move free summands (without x)
from left part to right part, we given:
$$18 x = - 6 x - 12$$
Move the summands with the unknown x
from the right part to the left part:
$$24 x = -12$$
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