Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 7*x-2*y=18
- 18*x+19*y=7
- 8*x-13*y=-12
- -10*x+13*y=5
- Equation:
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Equation 2*x^2+5*x-12=0
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Equation x^2+2x-8=0
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Equation x^4-10x^2+9=0
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Equation 7-4(3x-1)=5(1-2x)
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Identical expressions
- eight *x- twelve *y= nine
- 8 multiply by x minus 12 multiply by y equally 9
- eight multiply by x minus twelve multiply by y equally nine
- 8x-12y=9
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Similar expressions
- 8*x+12*y=9
Express x in terms of y where 8*x-12*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:
$$8 x = 12 y + 9$$
Divide both parts of the equation by 8
We get the answer: x = 9/8 + 3*y/2
8*x-12*y = 9
Looking for similar summands in the left part:
-12*y + 8*x = 9
Move the summands with the other variables
from left part to right part, we given:
$$8 x = 12 y + 9$$
Divide both parts of the equation by 8
x = 9 + 12*y / (8)
We get the answer: x = 9/8 + 3*y/2
Rapid solution
[src]
9 3*re(y) 3*I*im(y)
x1 = - + ------- + ---------
8 2 2
$$x_{1} = \frac{3 \operatorname{re}{\left(y\right)}}{2} + \frac{3 i \operatorname{im}{\left(y\right)}}{2} + \frac{9}{8}$$
x1 = 3*re(y)/2 + 3*i*im(y)/2 + 9/8