x+3=14
x+3-3 = 14-3 (subtract 3 from both sides to solve for x)
x = 11
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15 + 14 + 14 + 11 + 2x + x = 75 Collect like terms 54 + 3x = 75 Subtract 54 3x = 21 Divide by 3 x = 7 ■
3x+14 = 23 so 3x = 9 and so x = 9/3 = 3
29
6x - 14 = 3x + 5Subtract 3x from each side: 3x - 14 = 5Add 14 to each side: 3x = 19Divide each side by 3: x = 19/3
the Y in the sentence X plus Y equals 5 is Y=3 or 2 if the X is 2 or 3