Question

If four times a number plus 3 is 11, what is the number

Answer 1

Four times a number plus 3 is 11

$4 * n + 3 = 11$

$4n + 3 = 11 -3$    

$4n = 8$  

$4n/4=8 / 4$

$n = 2$

Hence solved 

Answer 2

N - the number

4 · n + 3 = 11
4n + 3 = 11      |subtract 3 from both sides
4n = 8    |divide both sides by 4

n = 2