Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 18*x-10*y=-9
- 18*x-12*y=-9
- 12*x+11*y=20
- 19*x-12*y=-9
- Equation:
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Equation 7*x=0
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Equation 3x-2=x+4
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Equation tan(x)=7
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Equation (x-3)(x^2-2x+1)=3(x-1)
- Integral of d{x}:
- -9
- Limit of the function:
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-9
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Identical expressions
- eighteen *x- ten *y=- nine
- 18 multiply by x minus 10 multiply by y equally minus 9
- eighteen multiply by x minus ten multiply by y equally minus nine
- 18x-10y=-9
-
Similar expressions
- 18*x+10*y=-9
- 18*x-10*y=+9
Express x in terms of y where 18*x-10*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:
$$18 x = 10 y - 9$$
Divide both parts of the equation by 18
We get the answer: x = -1/2 + 5*y/9
18*x-10*y = -9
Looking for similar summands in the left part:
-10*y + 18*x = -9
Move the summands with the other variables
from left part to right part, we given:
$$18 x = 10 y - 9$$
Divide both parts of the equation by 18
x = -9 + 10*y / (18)
We get the answer: x = -1/2 + 5*y/9
Rapid solution
[src]
1 5*re(y) 5*I*im(y)
x1 = - - + ------- + ---------
2 9 9
$$x_{1} = \frac{5 \operatorname{re}{\left(y\right)}}{9} + \frac{5 i \operatorname{im}{\left(y\right)}}{9} - \frac{1}{2}$$
x1 = 5*re(y)/9 + 5*i*im(y)/9 - 1/2