Mister Exam
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How to use it?
- Express {x} in terms of y where:
- 14*x+3*y=-4
- 14*x-4*y=14
- 1*x+20*y=6
- -2*x+4*y=3
- Equation:
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Equation x/3+x/4=-21
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Equation sin(x)=0
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Equation -5*(3*x-2)/7+4=7*x-4/9*(x-3)
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Identical expressions
- nine *x- twelve *y= eight
- 9 multiply by x minus 12 multiply by y equally 8
- nine multiply by x minus twelve multiply by y equally eight
- 9x-12y=8
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Similar expressions
- 9*x+12*y=8
Express x in terms of y where 9*x-12*y=8
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:
$$9 x = 12 y + 8$$
Divide both parts of the equation by 9
We get the answer: x = 8/9 + 4*y/3
9*x-12*y = 8
Looking for similar summands in the left part:
-12*y + 9*x = 8
Move the summands with the other variables
from left part to right part, we given:
$$9 x = 12 y + 8$$
Divide both parts of the equation by 9
x = 8 + 12*y / (9)
We get the answer: x = 8/9 + 4*y/3
Rapid solution
[src]
8 4*re(y) 4*I*im(y)
x1 = - + ------- + ---------
9 3 3
$$x_{1} = \frac{4 \operatorname{re}{\left(y\right)}}{3} + \frac{4 i \operatorname{im}{\left(y\right)}}{3} + \frac{8}{9}$$
x1 = 4*re(y)/3 + 4*i*im(y)/3 + 8/9