Question

How do you solve `4x + 3 <55`?

Answer 1

`x<13`

Explanation:

`color(blue)("General comment")`
Treat like a normal equation. The only thing to watch for is if you multiply an inequality by `(-1)`. This turns the sign round the other way. You do not have any need for multiplying by -1 in this question so it is not an issue.
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`color(blue)("Answering your question")`

Given:`" "4x+3<55`

Subtract 3 from both sides

`4x<52`

Divide both sides by 4

`4/4xx x<52/4`

But `4/4=1" and "52/4=13`

`1xx x<13`

`x<13`