Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x+2)/9=(x-3)/2
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Equation x^2-3*x+1=0
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Equation 9x−9(x+1)=−2x
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Equation 49,86-(0.3+0.049*49,86)=x
- Express {x} in terms of y where:
- 18*x-8*y=-2
- -11*x+15*y=7
- 6*x+17*y=3
- -10*x-18*y=15
- Expression:
- x-y
- x-y
- Limit of the function:
- x-y
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Identical expressions
- x-y= seven
- x minus y equally 7
- x minus y equally seven
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Similar expressions
- x+y=7
- 2^(x^(-y))-10*|x-3*y|=236
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:
$$x = y + 7$$
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:
$$x = y + 7$$
We get the answer: x = 7 + y
The graph
Sum and product of roots
[src]
sum
7 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} + 7$$
=
7 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} + 7$$
product
7 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} + 7$$
=
7 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} + 7$$
7 + i*im(y) + re(y)
Rapid solution
[src]
x1 = 7 + I*im(y) + re(y)
$$x_{1} = \operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} + 7$$
x1 = re(y) + i*im(y) + 7