Question

2(xt3)+(-3)=2x

Answer 1

2(x+3)+(-3)=2x
?

Answer 2

first you want to simplify by distributing the 2

Answer 3

okay then what

Answer 4

well, do that

Answer 5

how?

Answer 6

multiply everything in the parentheses by 2

Answer 7

is it true or false

Answer 8

false

Answer 9

Please explain why it is false so the whole class understands.

Answer 10

2(x+3)+(-3)=2x
2x+6 -3 = 2x
2x+3 = 2x
this is false. always

Answer 11

why? how can you tell it's false?

Answer 12

there is no x such that 2x +3 = 2x
try solving for x. you end up with 0=3 this is also false