Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -17*x+14*y=11
- -1*x-17*y=10
- 3*x+3*y=10
- 12*x+12*y=-3
- Equation:
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Equation x^2+2x+1=0
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Equation cos(x/2)=1/2
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Equation (x+7)*(x-1)=0
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Equation -4/7*x^2+28=0
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Identical expressions
- - eighteen *x+ nine *y= four
- minus 18 multiply by x plus 9 multiply by y equally 4
- minus eighteen multiply by x plus nine multiply by y equally four
- -18x+9y=4
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Similar expressions
- -18*x-9*y=4
- 18*x+9*y=4
Express x in terms of y where -18*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:
$$- 18 x = 4 - 9 y$$
Divide both parts of the equation by -18
We get the answer: x = -2/9 + y/2
-18*x+9*y = 4
Looking for similar summands in the left part:
-18*x + 9*y = 4
Move the summands with the other variables
from left part to right part, we given:
$$- 18 x = 4 - 9 y$$
Divide both parts of the equation by -18
x = 4 - 9*y / (-18)
We get the answer: x = -2/9 + y/2
Rapid solution
[src]
2 re(y) I*im(y)
x1 = - - + ----- + -------
9 2 2
$$x_{1} = \frac{\operatorname{re}{\left(y\right)}}{2} + \frac{i \operatorname{im}{\left(y\right)}}{2} - \frac{2}{9}$$
x1 = re(y)/2 + i*im(y)/2 - 2/9