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 6x+2=-1
- Equation (x^2-25)^2+(x^2+3x-10)^2=0
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Identical expressions
- eight *x+ one *y= four
- 8 multiply by x plus 1 multiply by y equally 4
- eight multiply by x plus one multiply by y equally four
- 8x+1y=4
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Similar expressions
- 8*x-1*y=4
Express x in terms of y where 8*x+1*y=4
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:
$$8 x = 4 - y$$
Divide both parts of the equation by 8
We get the answer: x = 1/2 - y/8
8*x+1*y = 4
Looking for similar summands in the left part:
y + 8*x = 4
Move the summands with the other variables
from left part to right part, we given:
$$8 x = 4 - y$$
Divide both parts of the equation by 8
x = 4 - y / (8)
We get the answer: x = 1/2 - y/8
Rapid solution
[src]
1 re(y) I*im(y)
x1 = - - ----- - -------
2 8 8
$$x_{1} = - \frac{\operatorname{re}{\left(y\right)}}{8} - \frac{i \operatorname{im}{\left(y\right)}}{8} + \frac{1}{2}$$
x1 = -re(y)/8 - i*im(y)/8 + 1/2