Question

Determine whether the statement is sometimes, always, or never true. If ax+b-4=b and doesn’t equal 0 then x=4/a?

Answer 1

Start with expression
`ax+b-4=b.`

1. Separate terms - with x leave in left side, without x write in right side:

`ax=b-b+4,\\ \\ax=4.`

2. Divide the last expression by a (
`a\\eq 0`):

`x=(4)/(a).`

Answer: this statement is true when
`a\\eq 0`.