Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation sinx=1
-
Equation x^2+5*x-14=0
-
Equation -2*x-7=-4*x
-
Equation x+4|x|=3
- Express {x} in terms of y where:
- 7*x+6*y=-1
- 16*x+6*y=11
- 10*x+8*y=3
- 6*x+18*y=-18
- Graphing y =:
- -4*x
- Integral of d{x}:
-
-4*x
- Derivative of:
-
-4*x
-
Identical expressions
- - two *x- seven =- four *x
- minus 2 multiply by x minus 7 equally minus 4 multiply by x
- minus two multiply by x minus seven equally minus four multiply by x
- -2x-7=-4x
-
Similar expressions
- -4x+22=x-3
- (x-7)^4-2(x-7)^2-15=0
- -14x+2=-4x+32
- x^3+x^2-4x-4=0
- 2*x-7=-4*x
- 5+2x=-2x-7
- (-2x+1)(-2x-7)=0
- -2*x+7=-4*x
- -2*x-7=+4*x
-2*x-7=-4*x 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:
$$- 2 x = 7 - 4 x$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = 7$$
Divide both parts of the equation by 2
We get the answer: x = 7/2
-2*x-7 = -4*x
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 7 - 4 x$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = 7$$
Divide both parts of the equation by 2
x = 7 / (2)
We get the answer: x = 7/2
Sum and product of roots
[src]
sum
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
product
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
7/2
The graph