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:
- x+y
- x+y
- Limit of the function:
- x+y
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Identical expressions
- x+y= seven
- x plus y equally 7
- x plus y equally seven
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Similar expressions
- x-y=7
- y=(e^(y/x))+(y/x)
x+y=7 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:
$$x = 7 - y$$
We get the answer: x = 7 - y
x+y = 7
Looking for similar summands in the left part:
x + y = 7
Move the summands with the other variables
from left part to right part, we given:
$$x = 7 - y$$
We get the answer: x = 7 - y
The graph
Rapid solution
[src]
x1 = 7 - re(y) - I*im(y)
$$x_{1} = - \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 7$$
x1 = -re(y) - i*im(y) + 7
Sum and product of roots
[src]
sum
7 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 7$$
=
7 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 7$$
product
7 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 7$$
=
7 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 7$$
7 - re(y) - i*im(y)