Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -19*x+10*y=-3
- -4*x-9*y=-2
- 18*x-10*y=-9
- 6*x+16*y=-7
- Equation:
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Equation 12/x=3
-
Equation 7x-9=40
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Equation 9*(x-1)=x+15
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Equation x*x-x+7=0
- Sum of series:
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-2
- Integral of d{x}:
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-2
- Derivative of:
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-2
-
Identical expressions
- - four *x- nine *y=- two
- minus 4 multiply by x minus 9 multiply by y equally minus 2
- minus four multiply by x minus nine multiply by y equally minus two
- -4x-9y=-2
-
Similar expressions
- -4*x+9*y=-2
- -4*x-9*y=+2
- 4*x-9*y=-2
Express x in terms of y where -4*x-9*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:
$$- 4 x = 9 y - 2$$
Divide both parts of the equation by -4
We get the answer: x = 1/2 - 9*y/4
-4*x-9*y = -2
Looking for similar summands in the left part:
-9*y - 4*x = -2
Move the summands with the other variables
from left part to right part, we given:
$$- 4 x = 9 y - 2$$
Divide both parts of the equation by -4
x = -2 + 9*y / (-4)
We get the answer: x = 1/2 - 9*y/4
Rapid solution
[src]
1 9*re(y) 9*I*im(y)
x1 = - - ------- - ---------
2 4 4
$$x_{1} = - \frac{9 \operatorname{re}{\left(y\right)}}{4} - \frac{9 i \operatorname{im}{\left(y\right)}}{4} + \frac{1}{2}$$
x1 = -9*re(y)/4 - 9*i*im(y)/4 + 1/2