Mister Exam
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How to use it?
- Express {x} in terms of y where:
- -7*x-20*y=-5
- 5*x-6*y=3
- -20*x+17*y=-16
- -8*x-2*y=-15
- Equation:
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Equation sin(x)=cos(x)
-
Equation x^3=3
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Equation cos(x)=(-1/2)
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Equation sin(x-1)=0
- Derivative of:
- -15
- Sum of series:
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-15
- Limit of the function:
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-15
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Identical expressions
- - three *x- six *y=- fifteen
- minus 3 multiply by x minus 6 multiply by y equally minus 15
- minus three multiply by x minus six multiply by y equally minus fifteen
- -3x-6y=-15
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Similar expressions
- 3*x-6*y=-15
- -3*x-6*y=+15
- -3*x+6*y=-15
Express x in terms of y where -3*x-6*y=-15
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:
$$- 3 x = 6 y - 15$$
Divide both parts of the equation by -3
We get the answer: x = 5 - 2*y
-3*x-6*y = -15
Looking for similar summands in the left part:
-6*y - 3*x = -15
Move the summands with the other variables
from left part to right part, we given:
$$- 3 x = 6 y - 15$$
Divide both parts of the equation by -3
x = -15 + 6*y / (-3)
We get the answer: x = 5 - 2*y
Rapid solution
[src]
x1 = 5 - 2*re(y) - 2*I*im(y)
$$x_{1} = - 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 5$$
x1 = -2*re(y) - 2*i*im(y) + 5