Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation -x/12+x=55/12
-
Equation 9/(x-2)=9/2
-
Equation 2-3*(2*x+2)=5-4*x
-
Equation x^4=(4x-21)^2
- Express {x} in terms of y where:
- 4*x+2*y=5
- -10*x-18*y=15
- 2*x-15*y=-1
- -19*x-5*y=-16
- Derivative of:
- (x+2)/9
-
(x-3)/2
- Integral of d{x}:
- (x-3)/2
- Graphing y =:
- (x-3)/2
-
Identical expressions
- (x+ two)/ nine =(x- three)/ two
- (x plus 2) divide by 9 equally (x minus 3) divide by 2
- (x plus two) divide by nine equally (x minus three) divide by two
- x+2/9=x-3/2
- (x+2) divide by 9=(x-3) divide by 2
-
Similar expressions
- (2x-3)/4+(x+2)/2=6+(2x-3)/2
- (13/5)*x-(3/2)=(41/10)*x
- (x-2)/9=(x-3)/2
- (x+2)/9=(x+3)/2
- ((4^(x-1)-2^x-2)/(2^x+4))-((4^x+2^x-3)/(2^x-8))-(2*2^x-4)=0
- ((4x+7)\(2x-3))-((x-3)/(2x-3))=1
- (3/4x+1/4y+5)y+(2/3x+2/9-3)=0
- (x-4)/(x-3)=x^2-6*x+2/9
- 5/6x+2/9=19
(x+2)/9=(x-3)/2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Expand brackets in the right part
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{9} = \frac{x}{2} - \frac{31}{18}$$
Move the summands with the unknown x
from the right part to the left part:
$$\frac{\left(-7\right) x}{18} = - \frac{31}{18}$$
Divide both parts of the equation by -7/18
We get the answer: x = 31/7
(x+2)/9 = (x-3)/2
Expand brackets in the left part
x/9+2/9 = (x-3)/2
Expand brackets in the right part
x/9+2/9 = x/2-3/2
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{9} = \frac{x}{2} - \frac{31}{18}$$
Move the summands with the unknown x
from the right part to the left part:
$$\frac{\left(-7\right) x}{18} = - \frac{31}{18}$$
Divide both parts of the equation by -7/18
x = -31/18 / (-7/18)
We get the answer: x = 31/7
Sum and product of roots
[src]
sum
31/7
$$\frac{31}{7}$$
=
31/7
$$\frac{31}{7}$$
product
31/7
$$\frac{31}{7}$$
=
31/7
$$\frac{31}{7}$$
31/7
The graph