Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 3*x+2*y=-4
- 12*x-2*y=17
- -13*x-14*y=0
- 9*x+1*y=-18
- Equation:
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Equation x^2+2x+1=0
-
Equation cos(x/2)=1/2
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Equation (x-4)/(x-6)=2
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Equation x^2-11*x+28=0
- Derivative of:
- -4
- Integral of d{x}:
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-4
- Limit of the function:
- -4
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Identical expressions
- three *x- nine *y=- four
- 3 multiply by x minus 9 multiply by y equally minus 4
- three multiply by x minus nine multiply by y equally minus four
- 3x-9y=-4
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Similar expressions
- 3*x-9*y=+4
- 3*x+9*y=-4
Express x in terms of y where 3*x-9*y=-4
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:
$$3 x = 9 y - 4$$
Divide both parts of the equation by 3
We get the answer: x = -4/3 + 3*y
3*x-9*y = -4
Looking for similar summands in the left part:
-9*y + 3*x = -4
Move the summands with the other variables
from left part to right part, we given:
$$3 x = 9 y - 4$$
Divide both parts of the equation by 3
x = -4 + 9*y / (3)
We get the answer: x = -4/3 + 3*y
Rapid solution
[src]
x1 = -4/3 + 3*re(y) + 3*I*im(y)
$$x_{1} = 3 \operatorname{re}{\left(y\right)} + 3 i \operatorname{im}{\left(y\right)} - \frac{4}{3}$$
x1 = 3*re(y) + 3*i*im(y) - 4/3