Question

Zoe is solving the equation 3x – 4 = –10 for x.

She used the addition property of equality to isolate the variable term as shown.

3x - 4 = -10
3x - +4 +4 = -10 + 4

3x = -6

Which two properties of equality could Zoe use to finish solving for x?

A. either the addition or subtraction property of equality
B. either the multiplication or division property of equality
C. either the addition or division property of equality
D. either the subtraction or division property of equality

Answer 1

Correct option is (B)

Explanation :

3x = -6

Divide each term by 3 , we get

3x/3 = (-6)/3

=> x = -2

••••

Answer 2

either the addition or subtraction property of equality