Answer:
8 r - 17
Step-by-step explanation:
Simplify the following:
(2 r - 13) - (4 - 6 r)
Factor 2 out of -6 r + 4:
2 r - 13 - 2 (2 - 3 r)
-2 (2 - 3 r) = 6 r - 4:
2 r - 13 + 6 r - 4
Grouping like terms, 2 r - 13 - 4 + 6 r = (2 r + 6 r) + (-13 - 4):
(2 r + 6 r) + (-13 - 4)
2 r + 6 r = 8 r:
8 r + (-13 - 4)
-13 - 4 = -(13 + 4):
8 r + -(13 + 4)
13 + 4 = 17:
Answer: 8 r - 17
