Mister Exam
Other calculators
-
How to use it?
- Express {x} in terms of y where:
- -2*x+20*y=-2
- -20*x-6*y=4
- 6*x+9*y=-9
- -20*x-13*y=15
- Equation:
-
Equation x^2+3x+2=0
-
Equation z^2-6*z+10=0
-
Equation x^2+5x+6=0
-
Equation 1*(x-1)*(x-3)=0
- Sum of series:
-
20
- Limit of the function:
-
20
- Integral of d{x}:
-
20
-
Identical expressions
- eight *x+ six *y= twenty
- 8 multiply by x plus 6 multiply by y equally 20
- eight multiply by x plus six multiply by y equally twenty
- 8x+6y=20
-
Similar expressions
- 8*x-6*y=20
Express x in terms of y where 8*x+6*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:
$$8 x = 20 - 6 y$$
Divide both parts of the equation by 8
We get the answer: x = 5/2 - 3*y/4
8*x+6*y = 20
Looking for similar summands in the left part:
6*y + 8*x = 20
Move the summands with the other variables
from left part to right part, we given:
$$8 x = 20 - 6 y$$
Divide both parts of the equation by 8
x = 20 - 6*y / (8)
We get the answer: x = 5/2 - 3*y/4
Rapid solution
[src]
5 3*re(y) 3*I*im(y)
x1 = - - ------- - ---------
2 4 4
$$x_{1} = - \frac{3 \operatorname{re}{\left(y\right)}}{4} - \frac{3 i \operatorname{im}{\left(y\right)}}{4} + \frac{5}{2}$$
x1 = -3*re(y)/4 - 3*i*im(y)/4 + 5/2