Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -10*x+15*y=10
- -14*x-12*y=-13
- 4*x-7*y=12
- 11*x+8*y=-16
- Equation:
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Equation (x-4)^2-x^2=0
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Equation 2x-3=4
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Equation x^2=-49
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Equation 6=8-5(7x-1)
- Sum of series:
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-2
- Integral of d{x}:
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-2
- Derivative of:
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-2
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Identical expressions
- nine *x- one *y=- two
- 9 multiply by x minus 1 multiply by y equally minus 2
- nine multiply by x minus one multiply by y equally minus two
- 9x-1y=-2
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Similar expressions
- 9*x-1*y=+2
- 9*x+1*y=-2
Express x in terms of y where 9*x-1*y=-2
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:
$$9 x = y - 2$$
Divide both parts of the equation by 9
We get the answer: x = -2/9 + y/9
9*x-1*y = -2
Looking for similar summands in the left part:
-y + 9*x = -2
Move the summands with the other variables
from left part to right part, we given:
$$9 x = y - 2$$
Divide both parts of the equation by 9
x = -2 + y / (9)
We get the answer: x = -2/9 + y/9
Rapid solution
[src]
2 re(y) I*im(y)
x1 = - - + ----- + -------
9 9 9
$$x_{1} = \frac{\operatorname{re}{\left(y\right)}}{9} + \frac{i \operatorname{im}{\left(y\right)}}{9} - \frac{2}{9}$$
x1 = re(y)/9 + i*im(y)/9 - 2/9