Answer:
Between step 4 and step 5
Step-by-step explanation:
The Division Property of Equality states that when both sides of an equation are divided by the same nonzero number, both sides remain equal.
That is, if a, b, and c are real numbers such that a = b and c ≠0, then
[tex]\frac{a}{c} = \frac{b}{c}[/tex]
At step 4: The equation was -6x = 57
To move to step 5, Paula had to divide both sides by the co-efficient of x (-6) in order to get the value of x. See below
[tex]-6x = 57[/tex] ---- Divide both sides by -6 (Step 4)
[tex]\frac{-6x}{-6} = \frac{57}{-6}[/tex] ---- (Intermediary between step 4 and 5)
[tex]x = -9.5[/tex] ----- Step 5
Hence, we can conclude that the division property of equality was done between step 4 and step 5
