How do you write the following as an algebraic expression using x as the variable: Five more than the product of 7 and a number?
Literal word-to-number translation is very easy and fun.
We have to write five more than the product of 7 and an unknown. Let that unknown be x. Since we have to write 5 more than the product of 7 and x, we write
#"let the number "=x#
#"product of 2 numbers means multiply the numbers"#
#rArr"the product of 7 and x "=7xx x=7x#
#"5 more means add on 5 to the product"#
#rArr7x+5" is the required expression"#