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OpenStudy (friendzone):
4x + 5x + 12 = -6 (given) 9x + 12 = -6 (simplify) 9x = -18 (subtraction) x = -2 (addition) Which reason is incorrect? A) addition B) given C) simplify D) subtraction
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OpenStudy (anonymous):
In the 3rd row, it says 'subtraction'. 9 is being multiplied to 'x' so we have to do the opposite, which is divide.
OpenStudy (texaschic101):
yep ^^....I agree
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