Question 688017


A number {{{x}}} plus it's fourth {{{x/4}}} is {{{210}}}:

{{{x+x/4=210}}}

{{{4x/4+x/4=210}}}

{{{5x/4=210}}}

{{{5x=210*4}}}

{{{5x=840}}}

{{{x=840/5}}}

{{{highlight(x=168)}}}


check:

{{{x+x/4=210}}}

{{{168+168/4=210}}}

{{{168+42=210}}}

{{{210=210}}}