15x+5=12X-16
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Answer:
15x + 5 = 12x -16
substract 12x both sides
15x + 5 - 12x = 12x -16 -12x
15x-12x + 5 = 12x - 12x -16
3x + 5 = -16
substract 5 both sides,
3x + 5 = -16
3x +5 -5 = -16 - 5
3x = -21
x = -21/3 = -7
other method,
15x + 5 = 12x - 16
15x - 12x = -16-5
3x = -21
x = -21/3 = -7
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