Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 7*x-2*y=18
- 18*x+19*y=7
- 8*x-13*y=-12
- -10*x+13*y=5
- Equation:
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Equation 2*x^2+5*x-12=0
-
Equation x^2+2x-8=0
-
Equation 6x+2=-1
- Equation (x^2-25)^2+(x^2+3x-10)^2=0
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Identical expressions
- - five *x- two *y= nine
- minus 5 multiply by x minus 2 multiply by y equally 9
- minus five multiply by x minus two multiply by y equally nine
- -5x-2y=9
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Similar expressions
- 5*x-2*y=9
- -5*x+2*y=9
Express x in terms of y where -5*x-2*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:
$$- 5 x = 2 y + 9$$
Divide both parts of the equation by -5
We get the answer: x = -9/5 - 2*y/5
-5*x-2*y = 9
Looking for similar summands in the left part:
-5*x - 2*y = 9
Move the summands with the other variables
from left part to right part, we given:
$$- 5 x = 2 y + 9$$
Divide both parts of the equation by -5
x = 9 + 2*y / (-5)
We get the answer: x = -9/5 - 2*y/5
Rapid solution
[src]
9 2*re(y) 2*I*im(y)
x1 = - - - ------- - ---------
5 5 5
$$x_{1} = - \frac{2 \operatorname{re}{\left(y\right)}}{5} - \frac{2 i \operatorname{im}{\left(y\right)}}{5} - \frac{9}{5}$$
x1 = -2*re(y)/5 - 2*i*im(y)/5 - 9/5