Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 18*x+17*y=-14
- -1*x-6*y=18
- 16*x-17*y=-15
- -4*x-4*y=19
- Equation:
-
Equation 25*x^2=16
- Equation 3*x^2-48=0
-
Equation x^2-5*x+7=0
-
Equation x^2-20=0
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Identical expressions
- - two *x- nine *y= one
- minus 2 multiply by x minus 9 multiply by y equally 1
- minus two multiply by x minus nine multiply by y equally one
- -2x-9y=1
-
Similar expressions
- 2*x-9*y=1
- -2*x+9*y=1
Express x in terms of y where -2*x-9*y=1
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:
$$- 2 x = 9 y + 1$$
Divide both parts of the equation by -2
We get the answer: x = -1/2 - 9*y/2
-2*x-9*y = 1
Looking for similar summands in the left part:
-9*y - 2*x = 1
Move the summands with the other variables
from left part to right part, we given:
$$- 2 x = 9 y + 1$$
Divide both parts of the equation by -2
x = 1 + 9*y / (-2)
We get the answer: x = -1/2 - 9*y/2
Rapid solution
[src]
1 9*re(y) 9*I*im(y)
x1 = - - - ------- - ---------
2 2 2
$$x_{1} = - \frac{9 \operatorname{re}{\left(y\right)}}{2} - \frac{9 i \operatorname{im}{\left(y\right)}}{2} - \frac{1}{2}$$
x1 = -9*re(y)/2 - 9*i*im(y)/2 - 1/2