Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 8*x+3*y=-15
- -12*x+13*y=-12
- -20*x-10*y=11
- -18*x-8*y=-3
- Equation:
-
Equation x^2+2x+1=0
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Equation sinx=1
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Equation cosx=1/2
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Equation x+x/9=-10/3
- Sum of series:
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11
- Integral of d{x}:
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11
- Derivative of:
- 11
-
Identical expressions
- - twenty *x- ten *y= eleven
- minus 20 multiply by x minus 10 multiply by y equally 11
- minus twenty multiply by x minus ten multiply by y equally eleven
- -20x-10y=11
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Similar expressions
- 20*x-10*y=11
- -20*x+10*y=11
Express x in terms of y where -20*x-10*y=11
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:
$$- 20 x = 10 y + 11$$
Divide both parts of the equation by -20
We get the answer: x = -11/20 - y/2
-20*x-10*y = 11
Looking for similar summands in the left part:
-20*x - 10*y = 11
Move the summands with the other variables
from left part to right part, we given:
$$- 20 x = 10 y + 11$$
Divide both parts of the equation by -20
x = 11 + 10*y / (-20)
We get the answer: x = -11/20 - y/2
Rapid solution
[src]
11 re(y) I*im(y)
x1 = - -- - ----- - -------
20 2 2
$$x_{1} = - \frac{\operatorname{re}{\left(y\right)}}{2} - \frac{i \operatorname{im}{\left(y\right)}}{2} - \frac{11}{20}$$
x1 = -re(y)/2 - i*im(y)/2 - 11/20