Mushroom picking

Martin went mushroom picking for three days. On the first day, he collected seven less than the third day, and on the second day, he collected eight more than the third day. Martin collected a total of 79 mushrooms. How much did he collect each day?

Final Answer:

a =  19
b =  34
c =  26

Step-by-step explanation:

a=c-7
b = 8+c
a+b+c=79

a-c = -7
b-c = 8
a+b+c = 79

Row 3 - Row 1 → Row 3
a-c = -7
b-c = 8
b+2c = 86

Row 3 - Row 2 → Row 3
a-c = -7
b-c = 8
3c = 78


c = 78/3 = 26
b = 8+c = 8+26 = 34
a = -7+c = -7+26 = 19

a = 19
b = 34
c = 26

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