Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -11*x+15*y=7
- 6*x+17*y=3
- -17*x+1*y=-11
- 1*x+4*y=20
- Equation:
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Equation x^4=(3*x-4)^2
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Equation 4-6*(x+2)=3-5*x
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Equation 1/(x-3)^2-3/(x-3)-4=0
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Equation 1+sin(x)=0
- Integral of d{x}:
- -9
- Limit of the function:
-
-9
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Identical expressions
- twenty *x+ seven *y=- nine
- 20 multiply by x plus 7 multiply by y equally minus 9
- twenty multiply by x plus seven multiply by y equally minus nine
- 20x+7y=-9
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Similar expressions
- 20*x+7*y=+9
- 20*x-7*y=-9
Express x in terms of y where 20*x+7*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:
$$20 x = - 7 y - 9$$
Divide both parts of the equation by 20
We get the answer: x = -9/20 - 7*y/20
20*x+7*y = -9
Looking for similar summands in the left part:
7*y + 20*x = -9
Move the summands with the other variables
from left part to right part, we given:
$$20 x = - 7 y - 9$$
Divide both parts of the equation by 20
x = -9 - 7*y / (20)
We get the answer: x = -9/20 - 7*y/20
Rapid solution
[src]
9 7*re(y) 7*I*im(y)
x1 = - -- - ------- - ---------
20 20 20
$$x_{1} = - \frac{7 \operatorname{re}{\left(y\right)}}{20} - \frac{7 i \operatorname{im}{\left(y\right)}}{20} - \frac{9}{20}$$
x1 = -7*re(y)/20 - 7*i*im(y)/20 - 9/20