Question 8 4
Justify each step. Circle what changed and put what operation used
a. 7 + 2(x - 3) + 5x = 7 + 2x - 6 + 5x
b.
= 7 + 2x + (-6) + 5x
C.
= 7 + (-6) + 2x + 5x
d.
= 7 + (-6) + (2 + 5)x
e.
= 7+ (-6) + 7x
f.
= 1 + 7x
= 7x + 1

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.

i got 10.28 but that rounds up to 10.3

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.