Question

Given: 3x+52=13
Prove: x = 7
write a two column proof

Answer 1

The answer x = 7 is false here is why.

`3x+52=13\Longrightarrow3x=-39`

This further simplifies to solution,

`x=-(39)/(3)\Longrightarrow\boxed{x=-13}`

Hope this helps.

r3t40