Question

a number increased by 7gives 18 the number is ​

Answer 1

$your question is ( a number increased by 7 gives 18 the number is)\:$

the answer is 11

because 7+11=18

also if u just assume number as x
then x+7=18
x=18-7
x=11

Answer 2

let the number be x

than according to question

x + 7 = 18

x = 18 - 7

x = 11