Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+6x-7=0
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Equation 9*(x-1)=x+15
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Equation x-2=-3x
- Equation x+y=8
- Express {x} in terms of y where:
- -15*x+3*y=8
- 19*x-7*y=-11
- -1*x+11*y=-9
- 13*x-18*y=-16
- Canonical form:
- x+y
- x+y
- Limit of the function:
- x+y
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Identical expressions
- x+y= eight
- x plus y equally 8
- x plus y equally eight
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Similar expressions
- x-y=8
x+y=8 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:
$$x = 8 - y$$
We get the answer: x = 8 - y
x+y = 8
Looking for similar summands in the left part:
x + y = 8
Move the summands with the other variables
from left part to right part, we given:
$$x = 8 - y$$
We get the answer: x = 8 - y
The graph
Rapid solution
[src]
x1 = 8 - re(y) - I*im(y)
$$x_{1} = - \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 8$$
x1 = -re(y) - i*im(y) + 8
Sum and product of roots
[src]
sum
8 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 8$$
=
8 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 8$$
product
8 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 8$$
=
8 - re(y) - I*im(y)
$$- \operatorname{re}{\left(y\right)} - i \operatorname{im}{\left(y\right)} + 8$$
8 - re(y) - i*im(y)