The sum of two numbers is 15 and their difference is 11.
What are the two numbers

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

How do i do this? i don’t understand