Lucia tried to solve the system below. lucia’s work. what error did lucia make? when lucia solved for the value of x, she subtracted 2y from both sides. when lucia solved for the value of y, she treated –2y as 2y. when lucia solved for the value of x, she added 18 to both sides. when lucia solved for the value of x, she treated –2(–9) as 18 instead of –18.

A. When Lucia solved the second equation for x, she subtracted 2y from both sides. EDG 2021

Step-by-step explanation:

Took test - goodluck!

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil