Combine terms: 12a + 26b - 4b - 16a.

(a) 4a + 22b,

(b) - 28a + 30b,

(c) - 4a + 22b,

(d) 28a + 30b.

Solution:

12a + 26b - 4b - 16a.

= 12a - 16a + 26b - 4b.

= - 4a + 22b.

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