Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation e^x=0
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Equation x^2+2x-3=0
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Equation -x-7=x
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Equation tan(x)=-2
- Express {x} in terms of y where:
- 2*x+2*y=-6
- 12*x-13*y=-14
- 4*x-1*y=-3
- 1*x+5*y=-11
- Integral of d{x}:
- -x-7
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Identical expressions
- -x- seven =x
- minus x minus 7 equally x
- minus x minus seven equally x
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Similar expressions
- 1335-(x-7251)=578
- (x+3)(x-4)-(x-7)(x-2)=2
- -x-2+3*(x-3)=2*(4-x)-7
- -x+7=x
- x-7=x
-x-7=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:
$$- x = x + 7$$
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
-x-7 = x
Move free summands (without x)
from left part to right part, we given:
$$- x = x + 7$$
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