4 years ago

Simplify: (7a − 9c) − (−12a − 33c) − (−21a + 10c)

2 answers:

6 0

Distribute all the negatives: 7a-9c+12a+33c+21a-10c

simplify:
40a+14c

5 0

$(7a-9c)-(-12a-33c)-(-21a+10c) \\ \\ =7a-9c+12a+33c+21a-10c \\ \\ =40a+14c \\ \\ \boxed {Answer\ is\ 40a+14c }$

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