Given the inequality:
3x−5>0To solve this inequality, we must first solve the corresponding equation:
3x−5=0Solve:
Given the linear equation:
3*x-5 = 0
Move free summands (without x)
from left part to right part, we given:
3x=5Divide both parts of the equation by 3
x = 5 / (3)
x1=35x1=35This roots
x1=35is the points with change the sign of the inequality expression.
First define with the sign to the leftmost point:
x0<x1For example, let's take the point
x0=x1−101=
−101+35=
3047substitute to the expression
3x−5>0−5+303⋅47>0-3/10 > 0
Then
x<35no execute
the solution of our inequality is:
x>35 _____
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x1