9. Joann solved the equation shown. Her steps are as follows: 72
5(x – 3) =
2.
Step 1
10(x - 3) = 7.5
Step 2
102 - 30 = 73
Step 3
32 - 30 = 0
Step 4
32 = 30
Step 5
= 10
Identify the property of equality that yields Step 1.
A. Multiplication
B. Addition
C. Subtraction
D. Division

A

Step-by-step explanation:

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

depends on how many days you are talking about

step-by-step explanation: