2/3(1+n)=-1/2n
step 1: distribute 2/3 to the parentheses
2/3 + 2/3n = -1/2n
step 2: subtract 2/3n from negative 1/2n
2/3 = -1/6n
step 3: multiply -1/6 and 2/3 by the reciprocal (multiplicative inverse)
-6/1 • 2/3 = n
n= -4
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