Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 4*x+8*y=7
- -14*x+5*y=3
- 13*x-18*y=-17
- 4*x+18*y=-7
- Equation:
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Equation x/4+13=x+1
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Equation 4(x-8)=-5
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Equation 5(x-2)^2=-6x-44
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Equation 2^x=5
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Identical expressions
- eleven *x+ nine *y=- twenty
- 11 multiply by x plus 9 multiply by y equally minus 20
- eleven multiply by x plus nine multiply by y equally minus twenty
- 11x+9y=-20
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Similar expressions
- 11*x+9*y=+20
- 11*x-9*y=-20
Express x in terms of y where 11*x+9*y=-20
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:
$$11 x = - 9 y - 20$$
Divide both parts of the equation by 11
We get the answer: x = -20/11 - 9*y/11
11*x+9*y = -20
Looking for similar summands in the left part:
9*y + 11*x = -20
Move the summands with the other variables
from left part to right part, we given:
$$11 x = - 9 y - 20$$
Divide both parts of the equation by 11
x = -20 - 9*y / (11)
We get the answer: x = -20/11 - 9*y/11
Rapid solution
[src]
20 9*re(y) 9*I*im(y)
x1 = - -- - ------- - ---------
11 11 11
$$x_{1} = - \frac{9 \operatorname{re}{\left(y\right)}}{11} - \frac{9 i \operatorname{im}{\left(y\right)}}{11} - \frac{20}{11}$$
x1 = -9*re(y)/11 - 9*i*im(y)/11 - 20/11