You keep the same sign. So:-
4 + 4 = 8 and
--4 + -4 = -8
Answer:
a = - 27
Step-by-step explanation:
- 
a - 6 = 12 ( add 6 to both sides )
- a = 18 ( multiply both sides by 3 to clear the fraction )
- 2a = 54 ( divide both sides by - 2 )
a = - 27
(2 - 5i) ( 2 + 5i) (i)
(4 + 10i -10i -25) (i)
(4 - 25) (i)
-21i
<span>For every 2 laps that a person can swim, the number of minutes they can run increases by 5. 100% Sure took the test Hope I helped</span>
