Solve by elimination: 2x + 5y = -2
-2x - 7y = 6

where is the diagram? shown below where? ?

step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

i believe a. 12x≥120 is the answer