Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 18*x-8*y=-2
- 12*x+8*y=18
- -11*x+9*y=-20
- -7*x+15*y=-11
- Equation:
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Equation x/9+x=-10/3
-
Equation z^4+1=0
-
Equation sin(x)+cos(x)=-1
-
Equation -3x-9=2x
- Derivative of:
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18
- Sum of series:
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18
- The double integral of:
- 18
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Identical expressions
- twelve *x+ eight *y= eighteen
- 12 multiply by x plus 8 multiply by y equally 18
- twelve multiply by x plus eight multiply by y equally eighteen
- 12x+8y=18
-
Similar expressions
- 12*x-8*y=18
Express x in terms of y where 12*x+8*y=18
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:
$$12 x = 18 - 8 y$$
Divide both parts of the equation by 12
We get the answer: x = 3/2 - 2*y/3
12*x+8*y = 18
Looking for similar summands in the left part:
8*y + 12*x = 18
Move the summands with the other variables
from left part to right part, we given:
$$12 x = 18 - 8 y$$
Divide both parts of the equation by 12
x = 18 - 8*y / (12)
We get the answer: x = 3/2 - 2*y/3
Rapid solution
[src]
3 2*re(y) 2*I*im(y)
x1 = - - ------- - ---------
2 3 3
$$x_{1} = - \frac{2 \operatorname{re}{\left(y\right)}}{3} - \frac{2 i \operatorname{im}{\left(y\right)}}{3} + \frac{3}{2}$$
x1 = -2*re(y)/3 - 2*i*im(y)/3 + 3/2