PLEASE SOMEONE HELP WHATS 2+2 PLEASE I NEED HELP:(

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Which value would be a solution for x in the inequality 47-4x< 7

What value of x is in the solution set of 4x – 12 s 16 + 8x?