Mister Exam
Other calculators
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How to use it?
- Equation:
-
Equation 8*x=56
- Equation x+2*y=7
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Equation -2*x^3/(x^2-1)^2+2*x/(x^2-1)=0
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Equation (x^2-16)/(x+4)=0
- Express {x} in terms of y where:
- 10*x+9*y=-11
- 14*x-11*y=-7
- -10*x-8*y=7
- -10*x+16*y=11
- Integral of d{x}:
- x+2*y
- x+2*y
- Limit of the function:
- x+2*y
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Identical expressions
- x+ two *y= seven
- x plus 2 multiply by y equally 7
- x plus two multiply by y equally seven
- x+2y=7
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Similar expressions
- 4x+2y=10
- x+2y=4
- x+2y=-92x-y=2
- 3x^2-2xy+3y^2-2x+2y+x=0
- x-2*y=7
x+2*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:
$$x = 7 - 2 y$$
We get the answer: x = 7 - 2*y
x+2*y = 7
Looking for similar summands in the left part:
x + 2*y = 7
Move the summands with the other variables
from left part to right part, we given:
$$x = 7 - 2 y$$
We get the answer: x = 7 - 2*y
The graph
Rapid solution
[src]
x1 = 7 - 2*re(y) - 2*I*im(y)
$$x_{1} = - 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 7$$
x1 = -2*re(y) - 2*i*im(y) + 7
Sum and product of roots
[src]
sum
7 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 7$$
=
7 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 7$$
product
7 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 7$$
=
7 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 7$$
7 - 2*re(y) - 2*i*im(y)