Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 9*x-19*y=-20
- 15*x+17*y=-10
- -11*x-18*y=6
- -7*x-5*y=-17
- Equation:
- Equation a^2*x^2-21*a^2+a*x+1=0
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Equation 5-x=4(x-3)
-
Equation exp(x)=0
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Equation 3^x=8
- Integral of d{x}:
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-3
- Sum of series:
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-3
- Derivative of:
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-3
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Identical expressions
- - one *x- two *y=- three
- minus 1 multiply by x minus 2 multiply by y equally minus 3
- minus one multiply by x minus two multiply by y equally minus three
- -1x-2y=-3
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Similar expressions
- 1*x-2*y=-3
- -1*x-2*y=+3
- -1*x+2*y=-3
Express x in terms of y where -1*x-2*y=-3
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:
$$- x = 2 y - 3$$
Divide both parts of the equation by -1
We get the answer: x = 3 - 2*y
-1*x-2*y = -3
Looking for similar summands in the left part:
-x - 2*y = -3
Move the summands with the other variables
from left part to right part, we given:
$$- x = 2 y - 3$$
Divide both parts of the equation by -1
x = -3 + 2*y / (-1)
We get the answer: x = 3 - 2*y
Rapid solution
[src]
x1 = 3 - 2*re(y) - 2*I*im(y)
$$x_{1} = - 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 3$$
x1 = -2*re(y) - 2*i*im(y) + 3