<PRE><B>Question 526368</B>
(1)  
10p +9-11 -p = -2(2p+4) -3(2p-2)
10p -p +9-11 = -4p -8 -6p +6
9p -2 = -4p -10p -8+6
9p -2 = -14p -2
23p = 0
p = 0
.
(2)
-3(1+6r) = 14-r
-3 -18r = 14 -r
-18r = 17 -r
-17r = 17
r = -1
.
(3)
-4k +2(5k-6) = -3k -39
-4k +10k -12 = -3k -39
6k -12 = -3k -39
9k -12 = -39
9k = -27
k = -3
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