Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -13*x-7*y=16
- -13*x+7*y=-15
- -9*x+11*y=9
- 9*x+14*y=-10
- Equation:
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Equation 2x-3(x+3)=-5
-
Equation 5x+12=8x+30
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Equation 1/x^2-3/x-4=0
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Equation x^2=2x+8
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Identical expressions
- - nine *x+ eleven *y= nine
- minus 9 multiply by x plus 11 multiply by y equally 9
- minus nine multiply by x plus eleven multiply by y equally nine
- -9x+11y=9
-
Similar expressions
- -9*x-11*y=9
- 9*x+11*y=9
Express x in terms of y where -9*x+11*y=9
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:
$$- 9 x = 9 - 11 y$$
Divide both parts of the equation by -9
We get the answer: x = -1 + 11*y/9
-9*x+11*y = 9
Looking for similar summands in the left part:
-9*x + 11*y = 9
Move the summands with the other variables
from left part to right part, we given:
$$- 9 x = 9 - 11 y$$
Divide both parts of the equation by -9
x = 9 - 11*y / (-9)
We get the answer: x = -1 + 11*y/9
Rapid solution
[src]
11*re(y) 11*I*im(y)
x1 = -1 + -------- + ----------
9 9
$$x_{1} = \frac{11 \operatorname{re}{\left(y\right)}}{9} + \frac{11 i \operatorname{im}{\left(y\right)}}{9} - 1$$
x1 = 11*re(y)/9 + 11*i*im(y)/9 - 1