Answer:
19. C) x = -3
21.). C) 2x0=0
Explanation:
-3 ( 4 - 2x) = 6
-3 x 4= -12
-3 x 2= -6
-12– -6x =6
6 — -12 = 18
-6x = 18
18/-6 = -3
X= -3
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