Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation 0=-1-2x
-
Equation ||x|-6|=4
-
Equation z^2+6*z+5=0
-
Equation -2x=0
- Express {x} in terms of y where:
- 5*x+4*y=9
- -13*x+1*y=-6
- -9*x+8*y=-16
- -15*x+15*y=10
-
Identical expressions
- -4x+ two (x+ one)-(three -x)=7x- three
- minus 4x plus 2(x plus 1) minus (3 minus x) equally 7x minus 3
- minus 4x plus two (x plus one) minus (three minus x) equally 7x minus three
- -4x+2x+1-3-x=7x-3
-
Similar expressions
- 4x+2(x+1)-(3-x)=7x-3
- -4x+2(x-1)-(3-x)=7x-3
- -4x+2(x+1)-(3+x)=7x-3
- 11,79-3,93*x^2+24,38*(x-3)^2-1,67*(x-3)^3-20*(x-5)^2+1,67*(x-5)^3=0
- -4x-2(x+1)-(3-x)=7x-3
- -4x+2(x+1)+(3-x)=7x-3
- -x^3+2*x^2-7*x-30=0
- 17*x-34=-170
- -4x+2(x+1)-(3-x)=7x+3
-4x+2(x+1)-(3-x)=7x-3 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
-4*x + 2*(x + 1) + -3 + x = 7*x - 3
$$\left(- 4 x + 2 \left(x + 1\right)\right) + \left(x - 3\right) = 7 x - 3$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- x = 7 x - 2$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-8\right) x = -2$$
Divide both parts of the equation by -8
We get the answer: x = 1/4
-4*x+2*(x+1)-(3-x) = 7*x-3
Expand brackets in the left part
-4*x+2*x+2*1-3+x = 7*x-3
Looking for similar summands in the left part:
-1 - x = 7*x-3
Move free summands (without x)
from left part to right part, we given:
$$- x = 7 x - 2$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-8\right) x = -2$$
Divide both parts of the equation by -8
x = -2 / (-8)
We get the answer: x = 1/4
Sum and product of roots
[src]
sum
1/4
$$\frac{1}{4}$$
=
1/4
$$\frac{1}{4}$$
product
1/4
$$\frac{1}{4}$$
=
1/4
$$\frac{1}{4}$$
1/4
The graph