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
- eighteen *x+ nineteen *y= seven
- 18 multiply by x plus 19 multiply by y equally 7
- eighteen multiply by x plus nineteen multiply by y equally seven
- 18x+19y=7
-
Similar expressions
- 18*x-19*y=7
Express x in terms of y where 18*x+19*y=7
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:
$$18 x = 7 - 19 y$$
Divide both parts of the equation by 18
We get the answer: x = 7/18 - 19*y/18
18*x+19*y = 7
Looking for similar summands in the left part:
18*x + 19*y = 7
Move the summands with the other variables
from left part to right part, we given:
$$18 x = 7 - 19 y$$
Divide both parts of the equation by 18
x = 7 - 19*y / (18)
We get the answer: x = 7/18 - 19*y/18
Rapid solution
[src]
7 19*re(y) 19*I*im(y)
x1 = -- - -------- - ----------
18 18 18
$$x_{1} = - \frac{19 \operatorname{re}{\left(y\right)}}{18} - \frac{19 i \operatorname{im}{\left(y\right)}}{18} + \frac{7}{18}$$
x1 = -19*re(y)/18 - 19*i*im(y)/18 + 7/18