Mister Exam
Other calculators
-
How to use it?
- Express {x} in terms of y where:
- 7*x-2*y=18
- -10*x-12*y=-10
- -2*x+2*y=4
- -3*x-20*y=-13
- Equation:
-
Equation -6x+2=-x+22
- Equation x^2-x-72=0
-
Equation x-5(x+3)=5
-
Equation 5x+8=-12
-
Identical expressions
- - two *x+ two *y= four
- minus 2 multiply by x plus 2 multiply by y equally 4
- minus two multiply by x plus two multiply by y equally four
- -2x+2y=4
-
Similar expressions
- -2*x-2*y=4
- 2*x+2*y=4
Express x in terms of y where -2*x+2*y=4
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:
$$- 2 x = 4 - 2 y$$
Divide both parts of the equation by -2
We get the answer: x = -2 + y
-2*x+2*y = 4
Looking for similar summands in the left part:
-2*x + 2*y = 4
Move the summands with the other variables
from left part to right part, we given:
$$- 2 x = 4 - 2 y$$
Divide both parts of the equation by -2
x = 4 - 2*y / (-2)
We get the answer: x = -2 + y
Rapid solution
[src]
x1 = -2 + I*im(y) + re(y)
$$x_{1} = \operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} - 2$$
x1 = re(y) + i*im(y) - 2