Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2-8*x-9=0
-
Equation 3*x^2-2=5*x
- Equation -x+y-1=0
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Equation 13-6(5x-2)=4
- Express {x} in terms of y where:
- -14*x-10*y=16
- -20*x+2*y=-12
- 1*x-7*y=20
- 4*x-2*y=4
-
Identical expressions
- thirteen - six (5x- two)= four
- 13 minus 6(5x minus 2) equally 4
- thirteen minus six (5x minus two) equally four
- 13-65x-2=4
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Similar expressions
- 13+6(5x-2)=4
- 13-6(5x+2)=4
13-6(5x-2)=4 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
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 30 x = -21$$
Divide both parts of the equation by -30
We get the answer: x = 7/10
13-6*(5*x-2) = 4
Expand brackets in the left part
13-6*5*x+6*2 = 4
Looking for similar summands in the left part:
25 - 30*x = 4
Move free summands (without x)
from left part to right part, we given:
$$- 30 x = -21$$
Divide both parts of the equation by -30
x = -21 / (-30)
We get the answer: x = 7/10
Sum and product of roots
[src]
sum
7/10
$$\frac{7}{10}$$
=
7/10
$$\frac{7}{10}$$
product
7/10
$$\frac{7}{10}$$
=
7/10
$$\frac{7}{10}$$
7/10
The graph