Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3*x^2-x-5=0
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Equation 3x+3=-2-7x
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Equation 2x^2+6x=0
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Equation 5x-3=2x
- Express {x} in terms of y where:
- -1*x+4*y=5
- -14*x-10*y=-1
- 12*x-1*y=-19
- -8*x-16*y=-20
- Derivative of:
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-2x
- Integral of d{x}:
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-2x
- Graphing y =:
- -2x
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Identical expressions
- 9x- three (x+ one)=-2x
- 9x minus 3(x plus 1) equally minus 2x
- 9x minus three (x plus one) equally minus 2x
- 9x-3x+1=-2x
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Similar expressions
- 3^(2*x)/(9^x-3^(x+1)+2)=a
- 9x+3(x+1)=-2x
- 9x-3(x-1)=-2x
- 9x-3(x+1)=+2x
- x^4-2*x^2+4=0
9x-3(x+1)=-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 left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$6 x = 3 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = 3$$
Divide both parts of the equation by 8
We get the answer: x = 3/8
9*x-3*(x+1) = -2*x
Expand brackets in the left part
9*x-3*x-3*1 = -2*x
Looking for similar summands in the left part:
-3 + 6*x = -2*x
Move free summands (without x)
from left part to right part, we given:
$$6 x = 3 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = 3$$
Divide both parts of the equation by 8
x = 3 / (8)
We get the answer: x = 3/8
Sum and product of roots
[src]
sum
3/8
$$\frac{3}{8}$$
=
3/8
$$\frac{3}{8}$$
product
3/8
$$\frac{3}{8}$$
=
3/8
$$\frac{3}{8}$$
3/8
The graph