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3p - 2q = 19 / x1 / 3p - 2q = 19 _
11q = - 22
q = -2
p + 3q = -1
p + 3.(-2) = -1
p - 6 = -1
p = -1 + 6
p = 5
2p - 3q = 2.(5) - 3.(-2)
= 10 + 6
= 16
3p-2q=19
3p-2q = 19
3p+9q = -3
di kurangi
-11q = 22
q= -2
subsitusikan.... 3p -2q = 19
3p -2(-2) = 19
p = 5
2p -3q =
2(5)- 3(-2)= 16