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
- twenty *x- sixteen *y= seven
- 20 multiply by x minus 16 multiply by y equally 7
- twenty multiply by x minus sixteen multiply by y equally seven
- 20x-16y=7
-
Similar expressions
- 20*x+16*y=7
Express x in terms of y where 20*x-16*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:
$$20 x = 16 y + 7$$
Divide both parts of the equation by 20
We get the answer: x = 7/20 + 4*y/5
20*x-16*y = 7
Looking for similar summands in the left part:
-16*y + 20*x = 7
Move the summands with the other variables
from left part to right part, we given:
$$20 x = 16 y + 7$$
Divide both parts of the equation by 20
x = 7 + 16*y / (20)
We get the answer: x = 7/20 + 4*y/5
Rapid solution
[src]
7 4*re(y) 4*I*im(y)
x1 = -- + ------- + ---------
20 5 5
$$x_{1} = \frac{4 \operatorname{re}{\left(y\right)}}{5} + \frac{4 i \operatorname{im}{\left(y\right)}}{5} + \frac{7}{20}$$
x1 = 4*re(y)/5 + 4*i*im(y)/5 + 7/20