12.9k views
0 votes
Simplify: (-7a - 19c) - (-12a + 30c) - (-21a - 11c)

A. -16a - 60c

B. 2a + 22c

C. 26a + 38c

D. 26a - 38c

User Idrumgood
by
6.2k points

2 Answers

3 votes
It is D hope that helps
User Nadia Alramli
by
6.2k points
0 votes
(-7a - 19c) - (-12a + 30c) - (-21a - 11c)
Rewrite with understood 1's:
1(-7a - 19c) - 1(-12a + 30c) - 1(-21a - 11c)
Distribute 1's to the terms:
-7a - 19c + 12a - 30c + 21a + 11c
Combine like terms.
26a - 38c
User Josefx
by
5.6k points