Question

The steps for solving the equation 2(x + 5) + 3 = 27 are shown below. What property justifies going from Step C to Step D?
A. 2(x + 5) + 3 = 27
B. 2x + 10 + 3 = 27
C. 2x + 13 = 27
D. 2x + 13 - 13 = 27 - 13
E. 2x + 0 = 14
F. 2x = 14
G. x = 7

Answer 1

One can add/remove the same quantity on both side of an equation without changing it.

Answer 2

here are the choices


A.
Additive identity
B.
Additive inverse
C.
Substitution
D.
Subtraction property of equality

Answer 3

It is probably D.

Answer 4

Could it be B.

Answer 5

I don't think so. B would be something where you add something, and remove at the same time. (Like, x +3 -3 = x)

Answer 6

Okay...