Question
Solve the equation
x=21
Alternative Form
x=0.5
Evaluate
∣x×1∣=1−x
Any expression multiplied by 1 remains the same
∣x∣=1−x
Rewrite the expression
∣x∣−1+x=0
Separate the equation into 2 possible cases
x−1+x=0,x≥0−x−1+x=0,x<0
Solve the equation
More Steps

Evaluate
x−1+x=0
Calculate
More Steps

Evaluate
x+x
Collect like terms by calculating the sum or difference of their coefficients
(1+1)x
Add the numbers
2x
2x−1=0
Move the constant to the right-hand side and change its sign
2x=0+1
Removing 0 doesn't change the value,so remove it from the expression
2x=1
Divide both sides
22x=21
Divide the numbers
x=21
x=21,x≥0−x−1+x=0,x<0
The statement is false for any value of x
More Steps

Evaluate
−x−1+x=0
Calculate the sum or difference
More Steps

Evaluate
−x−1+x
The sum of two opposites equals 0
0−1
Remove 0
−1
−1=0
The statement is false for any value of x
x∈∅
x=21,x≥0x∈∅,x<0
Find the intersection
x=21x∈∅,x<0
Find the intersection
x=21x∈∅
Solution
x=21
Alternative Form
x=0.5
Show Solution
