Mister Exam
Other calculators
-
How to use it?
- Express {x} in terms of y where:
- 18*x-10*y=-9
- 18*x-12*y=-9
- 12*x+11*y=20
- 19*x-12*y=-9
- Equation:
-
Equation 7*x=0
-
Equation 3x-2=x+4
-
Equation tan(x)=7
-
Equation (x-3)(x^2-2x+1)=3(x-1)
- -12
- Limit of the function:
-
-12
-
Identical expressions
- seven *x+ thirteen *y=- twelve
- 7 multiply by x plus 13 multiply by y equally minus 12
- seven multiply by x plus thirteen multiply by y equally minus twelve
- 7x+13y=-12
-
Similar expressions
- 7*x-13*y=-12
- 7*x+13*y=+12
Express x in terms of y where 7*x+13*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:
$$7 x = - 13 y - 12$$
Divide both parts of the equation by 7
We get the answer: x = -12/7 - 13*y/7
7*x+13*y = -12
Looking for similar summands in the left part:
7*x + 13*y = -12
Move the summands with the other variables
from left part to right part, we given:
$$7 x = - 13 y - 12$$
Divide both parts of the equation by 7
x = -12 - 13*y / (7)
We get the answer: x = -12/7 - 13*y/7
Rapid solution
[src]
12 13*re(y) 13*I*im(y)
x1 = - -- - -------- - ----------
7 7 7
$$x_{1} = - \frac{13 \operatorname{re}{\left(y\right)}}{7} - \frac{13 i \operatorname{im}{\left(y\right)}}{7} - \frac{12}{7}$$
x1 = -13*re(y)/7 - 13*i*im(y)/7 - 12/7