Question 286527
3A+4C=159 MULTIPLY BY 2.
2A+3C=112 MULTIPLY BY -3 & ADD.
6A+8C=318
-6A-9C=-336
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-C=-18
C=18 ANS.
3A+4*18=159
3A+72=159
3A=159-72
3A=87
A=87/3
A=29 ADULT TICKETS.
2*29+3*18=112
58+54=112
112=112