What is the reciprocal of the number? column a 1. -3/7 2. 3/7 3. -7/3 4. 7/3 column b
a. -7/3
b. -3/7
c. 3/7
d. 7/3
e. 1

Ithink the correct answer is d.

1. use commutative property to reorder the terms.2x+81=0.2. move the constant to right side by adding its opposite on both sides. 2x+81-81=0-81.2x=(-81).3. divide the equation on both sides.2x ÷ 2 = 81 ÷ 2.x = -81/2. your answer is -81/2. if you need to simplify it into a decimal, it’s -40.5.