Mister Exam
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Identical expressions
- eighteen *x- twelve *y= four
- 18 multiply by x minus 12 multiply by y equally 4
- eighteen multiply by x minus twelve multiply by y equally four
- 18x-12y=4
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Similar expressions
- 18*x+12*y=4
Express x in terms of y where 18*x-12*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:
$$18 x = 12 y + 4$$
Divide both parts of the equation by 18
We get the answer: x = 2/9 + 2*y/3
18*x-12*y = 4
Looking for similar summands in the left part:
-12*y + 18*x = 4
Move the summands with the other variables
from left part to right part, we given:
$$18 x = 12 y + 4$$
Divide both parts of the equation by 18
x = 4 + 12*y / (18)
We get the answer: x = 2/9 + 2*y/3
Rapid solution
[src]
2 2*re(y) 2*I*im(y)
x1 = - + ------- + ---------
9 3 3
$$x_{1} = \frac{2 \operatorname{re}{\left(y\right)}}{3} + \frac{2 i \operatorname{im}{\left(y\right)}}{3} + \frac{2}{9}$$
x1 = 2*re(y)/3 + 2*i*im(y)/3 + 2/9