Maths-
General
Easy
Question
Solve absolute value equation :
Hint:
|x| is known as the absolute value of x. It is the non-negative value of x irrespective of its sign. The value of absolute value of x is given by
We simplify the given equation. So, we will get two cases in the solution of the given equation. We apply the given definition and then simplify the two equations to get the value of x.
The correct answer is: Here, we get that |x+3| is negative, which is not possible. Thus, no value of x will satisfy the given equation.
Step by step solution:
The given equation is
5 |x + 3| + 8 = 6
Subtracting 8 from both sides, we get
5 |x+3| = 6 - 8 = - 2
Dividing by 5 throughout, we get
x+3|= - 2/5
But modulus is always non-negative.
Here, we get that |x+3| is negative, which is not possible.
Thus, no value of x will satisfy the given equation.
Absolute value of a variable has many uses in mathematics. Geometrically, the absolute value of a number may be considered as its distance from zero regardless of its direction. The symbol |.| is pronounced as ‘modulus’. We read |x| as ‘modulus of x’ or ‘mod x’.
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