48 = 144
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If: 3x = 48 Then: x = 16
3x+1=49 49-1=48 48/3x x=16
48
3x + 13 = 61 - 3x : add 3x to both sides 6x + 13 = 61 : deduct 13 from both sides 6x = 48 : divide both sides by 6 x = 8
Let the first number be x So, x + (x+2) + [ 2 + (x +2)] = 48 x + x + 2 + 4 + x = 48 3x + 6 = 48 3x = 42 x = 14 The numbers are 14, 16 and 18