Mister Exam
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How to use it?
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Identical expressions
- thirteen *x+ nine *y= one
- 13 multiply by x plus 9 multiply by y equally 1
- thirteen multiply by x plus nine multiply by y equally one
- 13x+9y=1
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Similar expressions
- 13*x-9*y=1
Express x in terms of y where 13*x+9*y=1
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:
$$13 x = 1 - 9 y$$
Divide both parts of the equation by 13
We get the answer: x = 1/13 - 9*y/13
13*x+9*y = 1
Looking for similar summands in the left part:
9*y + 13*x = 1
Move the summands with the other variables
from left part to right part, we given:
$$13 x = 1 - 9 y$$
Divide both parts of the equation by 13
x = 1 - 9*y / (13)
We get the answer: x = 1/13 - 9*y/13
Rapid solution
[src]
1 9*re(y) 9*I*im(y)
x1 = -- - ------- - ---------
13 13 13
$$x_{1} = - \frac{9 \operatorname{re}{\left(y\right)}}{13} - \frac{9 i \operatorname{im}{\left(y\right)}}{13} + \frac{1}{13}$$
x1 = -9*re(y)/13 - 9*i*im(y)/13 + 1/13