Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 9^x-8*3^x-9=0
- Equation x+y=4
-
Equation 5x+8=-12
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Equation x/9+x=-3
- Express {x} in terms of y where:
- 18*x+17*y=-14
- 16*x-17*y=-15
- -4*x-4*y=19
- 15*x+1*y=19
- Canonical form:
- 2x+2y
- 2x+2y
-
Identical expressions
- 2x+2y
- 2x plus 2y
-
Similar expressions
- 2x-2y
2x+2y equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Looking for similar summands in the left part:
Move the summands with the other variables
from left part to right part, we given:
$$2 y = - 2 x$$
Divide both parts of the equation by 2
We get the answer: y = -x
2*x+2*y = 0
Looking for similar summands in the left part:
2*x + 2*y = 0
Move the summands with the other variables
from left part to right part, we given:
$$2 y = - 2 x$$
Divide both parts of the equation by 2
y = -2*x / (2)
We get the answer: y = -x
The graph
Rapid solution
[src]
y1 = -re(x) - I*im(x)
$$y_{1} = - \operatorname{re}{\left(x\right)} - i \operatorname{im}{\left(x\right)}$$
y1 = -re(x) - i*im(x)
Sum and product of roots
[src]
sum
-re(x) - I*im(x)
$$- \operatorname{re}{\left(x\right)} - i \operatorname{im}{\left(x\right)}$$
=
-re(x) - I*im(x)
$$- \operatorname{re}{\left(x\right)} - i \operatorname{im}{\left(x\right)}$$
product
-re(x) - I*im(x)
$$- \operatorname{re}{\left(x\right)} - i \operatorname{im}{\left(x\right)}$$
=
-re(x) - I*im(x)
$$- \operatorname{re}{\left(x\right)} - i \operatorname{im}{\left(x\right)}$$
-re(x) - i*im(x)