3(-1.5)-5=
-4.5-5=
-9.5
3(2)-5=
6-5=
1
3(4)-5=
12-5=
7
{f(-1.5),f(2),f(4)} = {-9.5,1,7}
Try this:
2(x+5)=17
By distributing 2 to x and five you're left with 2x+10=17
Subtract 10 from both sides to equal 2x=7
Divide 7 for x=3.5
- 12 + x ≥ 3 (x - 6)
- or, 12 + x ≥ 3x - 18
- or, 12 + 18 ≥ 3x - x
- or, 30 ≥ 2x
- or, 30/2 ≥ x
- or, 15 ≥ x
- or, x ≤ 15
<u>Answer</u><u>:</u>
<em><u>x </u></em><em><u>≤</u></em><em><u> </u></em><em><u>1</u></em><em><u>5</u></em>
Hope you could get an idea from here.
Doubt clarification - use comment section.