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atroni [7]
3 years ago
6

Will pick brainlyest help me plz 15 pts

Mathematics
1 answer:
leonid [27]3 years ago
8 0
1.50c + 2.50a = 1100
c + a = 500

multiply the second equation by -1.50
                    
                      1.50c + 2.50a = 1100
-1.50c - 1.50a = -7.50


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