Mister Exam
Other calculators
-
How to use it?
- Express {x} in terms of y where:
- 1*x-11*y=-19
- 14*x-4*y=20
- -4*x-3*y=13
- 8*x+5*y=-12
- Equation:
-
Equation x^2+5*x-14=0
-
Equation laplace(x)=(39/40)
-
Equation 0,4x+3,8=2,6-0,8x
-
Equation x^2-15=2x
- -12
- Limit of the function:
-
-12
-
Identical expressions
- eight *x+ five *y=- twelve
- 8 multiply by x plus 5 multiply by y equally minus 12
- eight multiply by x plus five multiply by y equally minus twelve
- 8x+5y=-12
-
Similar expressions
- 8*x-5*y=-12
- 8*x+5*y=+12
Express x in terms of y where 8*x+5*y=-12
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:
$$8 x = - 5 y - 12$$
Divide both parts of the equation by 8
We get the answer: x = -3/2 - 5*y/8
8*x+5*y = -12
Looking for similar summands in the left part:
5*y + 8*x = -12
Move the summands with the other variables
from left part to right part, we given:
$$8 x = - 5 y - 12$$
Divide both parts of the equation by 8
x = -12 - 5*y / (8)
We get the answer: x = -3/2 - 5*y/8
Rapid solution
[src]
3 5*re(y) 5*I*im(y)
x1 = - - - ------- - ---------
2 8 8
$$x_{1} = - \frac{5 \operatorname{re}{\left(y\right)}}{8} - \frac{5 i \operatorname{im}{\left(y\right)}}{8} - \frac{3}{2}$$
x1 = -5*re(y)/8 - 5*i*im(y)/8 - 3/2