Question

(4m - 12 – 3m)7 < 140

Answer 1

We have

`\mleft(4m-12-3m\mright)7<140`

we need to simplify the inequality

`(m-12)7<140`
`7m-84<140`
`7m<140+84`
`7m<224`

then we isolate m

`m<(224)/(7)`
`m<32`