Mister Exam
Other calculators
-
How to use it?
- Equation:
- Equation x+y=15
-
Equation -(-y+4)+2*y+1=0
-
Equation 11-5(2x+1)=41-9x
- Equation 2*x^2+50=0
- Express {x} in terms of y where:
- -16*x-20*y=-13
- 4*x+5*y=7
- -5*x+7*y=-18
- -11*x-20*y=9
- Graphing y =:
- -4x-5
-
Identical expressions
- - three (one +4x)=-4x- five
- minus 3(1 plus 4x) equally minus 4x minus 5
- minus three (one plus 4x) equally minus 4x minus five
- -31+4x=-4x-5
-
Similar expressions
- 3(1+4x)=-4x-5
- -3(1+4x)=-4x+5
- x^2-4*x-59=0
- 3*x^2-4*x-5=0
- -3(1-4x)=-4x-5
- -3(1+4x)=+4x-5
-3(1+4x)=-4x-5 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
Move free summands (without x)
from left part to right part, we given:
$$- 12 x = - 4 x - 2$$
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
-3*(1+4*x) = -4*x-5
Expand brackets in the left part
-3*1-3*4*x = -4*x-5
Move free summands (without x)
from left part to right part, we given:
$$- 12 x = - 4 x - 2$$
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