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Elmer counted 9 pigs and cows.He counted 10 cows and horses.He counted 16 animals in all.How many cows did he count?

Sagot :

let x be the number of pigs
    9-x be the number of cows
    10-(9-x) or x+1 be the number of horses
x + 9 - x + x + 1 = 16
9 + x + 1 = 16
x + 10 = 16
x = 16 - 10
x = 6
9 - x = 3
x + 1 = 7
Therefore, there are 6 pigs, 3 cows and 7 horses
19 po kasi 16 yung animals di naman sinabi kung cow ba yun