Question

2( z + 1 ) - 4(z - 4) ≤ 2(z + 5)
please help

Answer 1

z
`\geq`2

Explanation:

2( z + 1 ) - 4(z - 4) ≤ 2(z + 5)

2z + 2 - 4z + 16
`\leq` 2z + 10

2 - 4z+ 16
`\leq` 10

18 - 4z
`\leq` 10

-4z
`\leq` 10 - 18

`(-4z)/(-4\\)`
`\leq`
`(-8)/(-4)`

z
`\geq` 2

Answer 2

z>=2

Explanation:

2z+2-4z+16<=2z+10

8<=4z

z>=2