Question

What is the best way to classify each equation?
Column A Column B
A. 1. 8x + 24=2(4x+12)
identity 2. 5x+8-x=2(2x+8)
B. 3. 7(3x-2)=20x-13
contradiction 4. 3x+2(x-10)=5(x-4)
C.
neither

Answer 1

Help.. v-v

Answer 2

8x+24= 2(4x+12)=2*4x+12*2=8x+24

Answer 3

so we see that it if identity

Answer 4

5x+8-x=2(2x+8) but 2(2x+8)=2*2x+2*8 which gives 4x+16

Answer 5

i gather that contradiction mean...
The method of proof by contradiction is to assume that a statement is not true and then to show that that assumption leads to a contradiction. In the case of trying to prove this is equivalent to assuming that That is, to assume that is true and is false.

Answer 6

so im not sure if that 1 is contradition or neither

Answer 7

7(3x-2)=20x-13
7*3x-7*2= 21x-14
im thinking this one shd be contradiction

Answer 8

3x+2(x-10)=5(x-4)

3x+2(x-10)= 3x+2*x-2*10=3x+2x-20=5x-20

5(x-4)=5*x-5*4=5x-20

so identify