Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 7*x-2*y=18
- -10*x-12*y=-10
- -2*x+2*y=4
- 11*x+8*y=-16
- Equation:
-
Equation -6x+2=-x+22
- Equation x^2-x-72=0
-
Equation x-5(x+3)=5
-
Equation 5x+8=-12
- Integral of d{x}:
- -9
- Limit of the function:
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-9
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Identical expressions
- twenty *x- seven *y=- nine
- 20 multiply by x minus 7 multiply by y equally minus 9
- twenty multiply by x minus 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