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3,5-x=8(x+2,8)

3,5-x=8(x+2,8) equation

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Numerical solution:

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The solution

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7/2 - x = 8*(x + 14/5)
72−x=8(x+145)\frac{7}{2} - x = 8 \left(x + \frac{14}{5}\right)
Simplify
Detail solution
Given the linear equation:
(7/2)-x = 8*(x+(14/5))

Expand brackets in the left part
7/2-x = 8*(x+(14/5))

Expand brackets in the right part
7/2-x = 8*x+8*14/5)

Move free summands (without x)
from left part to right part, we given:
−x=8x+18910- x = 8 x + \frac{189}{10}
Move the summands with the unknown x
from the right part to the left part:
(−9)x=18910\left(-9\right) x = \frac{189}{10}
Divide both parts of the equation by -9
x = 189/10 / (-9)

We get the answer: x = -21/10
The graph
0246-12-10-8-6-4-2-200200
Plot the graph f1(x)
Plot the graph f2(x)
Sum and product of roots [src] 
sum
-21 
----
 10
−2110- \frac{21}{10} 
=
-21 
----
 10
−2110- \frac{21}{10} 
product
-21 
----
 10
−2110- \frac{21}{10} 
=
-21 
----
 10
−2110- \frac{21}{10} 
-21/10
Rapid solution [src] 
     -21 
x1 = ----
      10
x1=−2110x_{1} = - \frac{21}{10} 
x1 = -21/10
Numerical answer [src] 
x1 = -2.1
x1 = -2.1
The graph
3,5-x=8(x+2,8) equation
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