Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 17*x+1*y=11
- 20*x-18*y=-7
- -16*x+18*y=-18
- -3*x-17*y=-11
- Equation:
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Equation x+7*4=40
-
Equation z^2+z+2=0
-
Equation 3*x^2+6*x+3=0
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Equation -4x+3=2x
- Sum of series:
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20
- Integral of d{x}:
-
20
- Limit of the function:
-
20
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Identical expressions
- - twenty *x+ five *y= twenty
- minus 20 multiply by x plus 5 multiply by y equally 20
- minus twenty multiply by x plus five multiply by y equally twenty
- -20x+5y=20
-
Similar expressions
- 20*x+5*y=20
- -20*x-5*y=20
Express x in terms of y where -20*x+5*y=20
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:
$$- 20 x = 20 - 5 y$$
Divide both parts of the equation by -20
We get the answer: x = -1 + y/4
-20*x+5*y = 20
Looking for similar summands in the left part:
-20*x + 5*y = 20
Move the summands with the other variables
from left part to right part, we given:
$$- 20 x = 20 - 5 y$$
Divide both parts of the equation by -20
x = 20 - 5*y / (-20)
We get the answer: x = -1 + y/4
Rapid solution
[src]
re(y) I*im(y)
x1 = -1 + ----- + -------
4 4
$$x_{1} = \frac{\operatorname{re}{\left(y\right)}}{4} + \frac{i \operatorname{im}{\left(y\right)}}{4} - 1$$
x1 = re(y)/4 + i*im(y)/4 - 1