Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -17*x+14*y=11
- -1*x-17*y=10
- 3*x+3*y=10
- 12*x+12*y=-3
- Equation:
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Equation x^2+2x+1=0
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Equation cos(x/2)=1/2
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Equation (x+7)*(x-1)=0
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Equation -4/7*x^2+28=0
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Identical expressions
- - eighteen *x- one *y= seven
- minus 18 multiply by x minus 1 multiply by y equally 7
- minus eighteen multiply by x minus one multiply by y equally seven
- -18x-1y=7
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Similar expressions
- -18*x+1*y=7
- 18*x-1*y=7
Express x in terms of y where -18*x-1*y=7
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:
$$- 18 x = y + 7$$
Divide both parts of the equation by -18
We get the answer: x = -7/18 - y/18
-18*x-1*y = 7
Looking for similar summands in the left part:
-y - 18*x = 7
Move the summands with the other variables
from left part to right part, we given:
$$- 18 x = y + 7$$
Divide both parts of the equation by -18
x = 7 + y / (-18)
We get the answer: x = -7/18 - y/18
Rapid solution
[src]
7 re(y) I*im(y)
x1 = - -- - ----- - -------
18 18 18
$$x_{1} = - \frac{\operatorname{re}{\left(y\right)}}{18} - \frac{i \operatorname{im}{\left(y\right)}}{18} - \frac{7}{18}$$
x1 = -re(y)/18 - i*im(y)/18 - 7/18