Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 15*x-5*y=-5
- 18*x+20*y=-2
- -5*x-6*y=-1
- 4*x+12*y=-11
- Equation:
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Equation 5^x=125
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Equation -x=2
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Equation -2*x-4=3*x
- Equation x+y=4
- Derivative of:
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-2
- Sum of series:
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-2
- Integral of d{x}:
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-2
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Identical expressions
- eighteen *x+ twenty *y=- two
- 18 multiply by x plus 20 multiply by y equally minus 2
- eighteen multiply by x plus twenty multiply by y equally minus two
- 18x+20y=-2
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Similar expressions
- 18*x+20*y=+2
- 18*x-20*y=-2
Express x in terms of y where 18*x+20*y=-2
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:
$$18 x = - 20 y - 2$$
Divide both parts of the equation by 18
We get the answer: x = -1/9 - 10*y/9
18*x+20*y = -2
Looking for similar summands in the left part:
18*x + 20*y = -2
Move the summands with the other variables
from left part to right part, we given:
$$18 x = - 20 y - 2$$
Divide both parts of the equation by 18
x = -2 - 20*y / (18)
We get the answer: x = -1/9 - 10*y/9
Rapid solution
[src]
1 10*re(y) 10*I*im(y)
x1 = - - - -------- - ----------
9 9 9
$$x_{1} = - \frac{10 \operatorname{re}{\left(y\right)}}{9} - \frac{10 i \operatorname{im}{\left(y\right)}}{9} - \frac{1}{9}$$
x1 = -10*re(y)/9 - 10*i*im(y)/9 - 1/9