Mister Exam
Other calculators
-
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:
-
Equation 2*x^2+5*x-12=0
-
Equation x^2+2x-8=0
-
Equation 6x+2=-1
- Equation (x^2-25)^2+(x^2+3x-10)^2=0
-
Identical expressions
- - fifteen *x- thirteen *y=- twenty
- minus 15 multiply by x minus 13 multiply by y equally minus 20
- minus fifteen multiply by x minus thirteen multiply by y equally minus twenty
- -15x-13y=-20
-
Similar expressions
- -15*x+13*y=-20
- -15*x-13*y=+20
- 15*x-13*y=-20
Express x in terms of y where -15*x-13*y=-20
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:
$$- 15 x = 13 y - 20$$
Divide both parts of the equation by -15
We get the answer: x = 4/3 - 13*y/15
-15*x-13*y = -20
Looking for similar summands in the left part:
-15*x - 13*y = -20
Move the summands with the other variables
from left part to right part, we given:
$$- 15 x = 13 y - 20$$
Divide both parts of the equation by -15
x = -20 + 13*y / (-15)
We get the answer: x = 4/3 - 13*y/15
Rapid solution
[src]
4 13*re(y) 13*I*im(y)
x1 = - - -------- - ----------
3 15 15
$$x_{1} = - \frac{13 \operatorname{re}{\left(y\right)}}{15} - \frac{13 i \operatorname{im}{\left(y\right)}}{15} + \frac{4}{3}$$
x1 = -13*re(y)/15 - 13*i*im(y)/15 + 4/3