Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x/4+x=12
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Equation 5^x=6-x
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Equation -5+2x=-2x-7
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Equation x^2-18=7*x
- Express {x} in terms of y where:
- -16*x-9*y=-1
- -18*x-13*y=2
- 8*x-4*y=10
- -6*x-11*y=-20
- Graphing y =:
- -4*x
- Integral of d{x}:
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-4*x
- Derivative of:
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-4*x
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Identical expressions
- - two *x- seven =- four *x
- minus 2 multiply by x minus 7 equally minus 4 multiply by x
- minus two multiply by x minus seven equally minus four multiply by x
- -2x-7=-4x
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Similar expressions
- -2*x-7=+4*x
- 11-5x=2(3-4x)-16
- 2*x-7=-4*x
- 5-2(x-7)=5x-(2x-4)
- -5+2x=-2x-7
- (x-7)^4-2(x-7)^2-15=0
- x^3-4x^2-9x+36=0
- -2*x+7=-4*x
-2*x-7=-4*x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 7 - 4 x$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = 7$$
Divide both parts of the equation by 2
We get the answer: x = 7/2
-2*x-7 = -4*x
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 7 - 4 x$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = 7$$
Divide both parts of the equation by 2
x = 7 / (2)
We get the answer: x = 7/2
Sum and product of roots
[src]
sum
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
product
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
7/2
The graph