Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation 7*x=0
-
Equation 3x-2=x+4
-
Equation tan(x)=7
-
Equation (x-3)(x^2-2x+1)=3(x-1)
- 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
-
Identical expressions
- three (two -x)-(5x+ four)= zero , four -16x
- 3(2 minus x) minus (5x plus 4) equally 0,4 minus 16x
- three (two minus x) minus (5x plus four) equally zero , four minus 16x
- 32-x-5x+4=0,4-16x
- 3(2-x)-(5x+4)=O,4-16x
-
Similar expressions
- 3(2-x)+(5x+4)=0,4-16x
- 3*2-x-5x+4=0.4-16x
- 3(2+x)-(5x+4)=0,4-16x
- 3(2-x)-(5x+4)=0,4+16x
- 3(2-x)-(5x-4)=0,4-16x
3(2-x)-(5x+4)=0,4-16x equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
3*(2 - x) + -5*x - 4 = 2/5 - 16*x
$$3 \left(2 - x\right) + \left(- 5 x - 4\right) = \frac{2}{5} - 16 x$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Expand brackets in the right part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 8 x = - 16 x - \frac{8}{5}$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = - \frac{8}{5}$$
Divide both parts of the equation by 8
We get the answer: x = -1/5
3*(2-x)-(5*x+4) = (2/5)-16*x
Expand brackets in the left part
3*2-3*x-5*x-4 = (2/5)-16*x
Expand brackets in the right part
3*2-3*x-5*x-4 = 2/5-16*x
Looking for similar summands in the left part:
2 - 8*x = 2/5-16*x
Move free summands (without x)
from left part to right part, we given:
$$- 8 x = - 16 x - \frac{8}{5}$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = - \frac{8}{5}$$
Divide both parts of the equation by 8
x = -8/5 / (8)
We get the answer: x = -1/5
Sum and product of roots
[src]
sum
-1/5
$$- \frac{1}{5}$$
=
-1/5
$$- \frac{1}{5}$$
product
-1/5
$$- \frac{1}{5}$$
=
-1/5
$$- \frac{1}{5}$$
-1/5
The graph