If 9a - b = 10b + 70 = -12b - 2a, what is the value of 11a + 11b?
Choose the correct choice.
A) -4 B) -2 C) 0 D) 2 E) 4
(i) 9a - 11b = 70   (ii) 2a + 22b = -70   Adding (i) and (ii):   11a + 11b = 0   The answer is 0.
<result>C</result>
If 9a - b = 10b + 70 = -12b - 2a, what is the value of 11a + 11b?