Jika p= a + 5 dan q = a - 4, maka p + 2q = ... A. 5a + 6 B. 4a + 9 C. 4a - 6 D. 3a + 9 E. 3a - 3

p = a + 5
q = a - 4
p + 2q =
(a + 5) + 2(a - 4)
⇒ a + 5 + 2a - 8
⇒ 3a - 3

mohon koreksinya,

= > p = a + 5
= > q = a - 4
= > Jadi , p + 2q
p + 2q
= ( a + 5 ) + 2 ( a - 4 )
= ( a + 5 ) + ( 2a - 8 )
= ( 2a + a ) - ( 8 - 5 )
= 3a - 3 ( E )
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