Question

4 times itself and plus 1 equals this number. What is the number?

Answer 1

$\displaystyle \large \boldsymbol {} \sf 4x+1=x \\\\4x-x+1=0 \\\\3x+1=0 \\\\ 3x=-1 \\\\x=-\frac{1}{3}$

Answer 2

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Let the number be x, now the above statement can be written as :

• $4x + 1 = x$

• $4x - x = - 1$

• $3x = - 1$

• $x = \dfrac{ - 1}{3}$