sktksktksktksk012 sktksktksktksk012 Today at 9:31 PM Mathematics Answered URGENT!Three times a number plus 7 equals 11 more than the number.(a) Which equation could be used to find the number?1. 3x+7=x+112. 3x+7=x-113. 3x-7=114. 7-3x=x-11(b) What is the number? ____