Question

what is the value of 7x-2x+3 when x= 5 ?

Answer 1

28 because 7 times 5 is 35 and 2 times 5 is ten so you have 35-10 which is 25 plus 3 which is 28

Answer 2

7x-2x+3x
Plug in the 5
7(5)-2(5)+3(5)
35-10+15
25+15
the answer is 10