Six more than the product of a number and 4 equals 5. What its the number?

1 Answer
May 20, 2018

#n=-1/4#

Explanation:

#"in maths product means multiply"#

#"let the number to be found "=n#

#"product of 4 and a number "=4xxn=4n#

#"6 more than this product means add 6 "#

#rArr4n+6#

#rArr4n+6=5#

#"subtract 6 from both sides"#

#4ncancel(+6)cancel(-6)=5-6#

#rArr4n=-1#

#"divide both sides by 4"#

#(cancel(4) n)/cancel(4)=-1/4#

#"the number is "-1/4#

#color(blue)"As a check"#

#cancel(4)xx-1/cancel(4)+6=-1+6=5larr" correct"#