how to you get the answer?

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Hi Ericka -- the middle number of the 3 must be 1/3 of 378 or 126 => 125,126,127 :)

(For example if first number is 2, second will be 2 +

x + (x + 1) + (x + 2) = 378

x + x + 1 + x + 2 = 378

3x + 3 = 378

3(x + 1) = 378

÷ 3 ÷ 3

x + 1 = 126

- 1 - 1

x = 125

The first number is

125 + 126 + 127 = 378

Let x be the smallest one. These three numbers are x, x+1 and x+2.

x+(x+1)+(x+2) = 378

Solve for x,

3x+3 = 378

3x = 375

x = 125

Answer: 125, 126, 127

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