Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 18*x-20*y=-7
- -13*x+7*y=11
- -19*x-14*y=-8
- 4*x+18*y=-14
- Equation:
-
Equation (x^2-1)/(x+2)=4x
-
Equation 3*x+5+(x+5)=(1-x)+4
-
Equation cos(x)=3/4
-
Equation cos(x)=(1/2)
- Derivative of:
- 11
- Limit of the function:
- 11
- Integral of d{x}:
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11
-
Identical expressions
- - thirteen *x+ seven *y= eleven
- minus 13 multiply by x plus 7 multiply by y equally 11
- minus thirteen multiply by x plus seven multiply by y equally eleven
- -13x+7y=11
-
Similar expressions
- 13*x+7*y=11
- -13*x-7*y=11
Express x in terms of y where -13*x+7*y=11
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:
$$- 13 x = 11 - 7 y$$
Divide both parts of the equation by -13
We get the answer: x = -11/13 + 7*y/13
-13*x+7*y = 11
Looking for similar summands in the left part:
-13*x + 7*y = 11
Move the summands with the other variables
from left part to right part, we given:
$$- 13 x = 11 - 7 y$$
Divide both parts of the equation by -13
x = 11 - 7*y / (-13)
We get the answer: x = -11/13 + 7*y/13
Rapid solution
[src]
11 7*re(y) 7*I*im(y)
x1 = - -- + ------- + ---------
13 13 13
$$x_{1} = \frac{7 \operatorname{re}{\left(y\right)}}{13} + \frac{7 i \operatorname{im}{\left(y\right)}}{13} - \frac{11}{13}$$
x1 = 7*re(y)/13 + 7*i*im(y)/13 - 11/13