Six more than the product of a number and 4 equals 5. What its the number?
1 Answer
May 20, 2018
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"#