twice the sum of a and b is thrice c

math_celebrity

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twice the sum of a and b is thrice c

The sum of a and b:
a + b

twice the sum of a and b means we multiply the sum of a and b by 2:
2(a + b)

Thrice c means we multiply c by 3:
3c

The word is means equal to, so we set 2(a + b) equal to 3c:
2(a + b) = 3c

 
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