Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -13*x+7*y=11
- -8*x-15*y=15
- 4*x+18*y=-14
- -15*x-17*y=13
- Equation:
-
Equation (x^2-1)/(x+2)=4x
-
Equation 3*x+5+(x+5)=(1-x)+4
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Equation cos(x)=3/4
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Equation cos(x)=(1/2)
- Sum of series:
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13
- Canonical form:
- 13
- Derivative of:
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13
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Identical expressions
- - fifteen *x- seventeen *y= thirteen
- minus 15 multiply by x minus 17 multiply by y equally 13
- minus fifteen multiply by x minus seventeen multiply by y equally thirteen
- -15x-17y=13
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Similar expressions
- 15*x-17*y=13
- -15*x+17*y=13
Express x in terms of y where -15*x-17*y=13
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:
$$- 15 x = 17 y + 13$$
Divide both parts of the equation by -15
We get the answer: x = -13/15 - 17*y/15
-15*x-17*y = 13
Looking for similar summands in the left part:
-17*y - 15*x = 13
Move the summands with the other variables
from left part to right part, we given:
$$- 15 x = 17 y + 13$$
Divide both parts of the equation by -15
x = 13 + 17*y / (-15)
We get the answer: x = -13/15 - 17*y/15
Rapid solution
[src]
13 17*re(y) 17*I*im(y)
x1 = - -- - -------- - ----------
15 15 15
$$x_{1} = - \frac{17 \operatorname{re}{\left(y\right)}}{15} - \frac{17 i \operatorname{im}{\left(y\right)}}{15} - \frac{13}{15}$$
x1 = -17*re(y)/15 - 17*i*im(y)/15 - 13/15