Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation x^2+2x+1=0
-
Equation 3x^2=2x+x^3
-
Equation cos(x)+1=0
- Equation 3*x+11/9=x-91/27
- Express {x} in terms of y where:
- -15*x+18*y=-6
- -2*x+1*y=-3
- -18*x-18*y=-16
- -16*x-7*y=-20
-
Identical expressions
- seven *3x- two = seven *33x+ nine
- 7 multiply by 3x minus 2 equally 7 multiply by 33x plus 9
- seven multiply by 3x minus two equally seven multiply by 33x plus nine
- 73x-2=733x+9
-
Similar expressions
- 7*3x+2=7*33x+9
- 7*3x-2=7*33x-9
- log7(3x-2)=log7(5-x)
7*3x-2=7*33x+9 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$21 x = 231 x + 11$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-210\right) x = 11$$
Divide both parts of the equation by -210
We get the answer: x = -11/210
7*3*x-2 = 7*33*x+9
Move free summands (without x)
from left part to right part, we given:
$$21 x = 231 x + 11$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-210\right) x = 11$$
Divide both parts of the equation by -210
x = 11 / (-210)
We get the answer: x = -11/210
Sum and product of roots
[src]
sum
-11 ---- 210
$$- \frac{11}{210}$$
=
-11 ---- 210
$$- \frac{11}{210}$$
product
-11 ---- 210
$$- \frac{11}{210}$$
=
-11 ---- 210
$$- \frac{11}{210}$$
-11/210