I have 5 questions:
1. Add the two expressions.
8k + 4 and 3k + 8
2.Add the two expressions.
6q + 1 and q + 11
3.Add the two expressions.
−4.2x+3 and 2.5x−6
4.Subtract h + 3 from 6h + 1.
5.Subtract −b+3 from −11b−4 .
PLEASE ANSWER AS SOON AS POSSIBLE EVEN IF YOU ONLY KNOW SOME OF THE PROBLEMS!

QUESTION 1

We want to add the following expressions:

[tex]8k + 4 [/tex]
and

[tex]3k + 8[/tex]

We set up the addition as follows:

[tex](8k + 4 ) + (3k + 8)[/tex]

We regroup the terms to obtain;

[tex] = 8k + 3k + 4 + 8[/tex]

We simplify to obtain,

[tex] = 11k + 12[/tex]

QUESTION 2

We want to add

[tex]6q + 1[/tex]
and

[tex]q + 11[/tex]

We add to obtain,

[tex](6q + 1) + (q + 11)[/tex]

We re group the terms to get,

[tex] = 6q + q + 11 + 1[/tex]

We simplify to obtain,

[tex] = 7q + 12[/tex]

QUESTION 3

The given expressions are

[tex] - 4.2x + 3[/tex]

and

[tex]2.5x - 6[/tex]

We add to obtain,

[tex] (- 4.2x + 3) + (2.5x - 6)[/tex]

We regroup like terms to obtain,

[tex] = - 4.2x + 2.5x - 6 + 3[/tex]

We simplify to get;

[tex] - 1.7x - 3[/tex]

QUESTION 4

We want to subtract

[tex] h+ 3[/tex]

from

[tex]6h + 1[/tex]

We subtract to obtain;

[tex] = (6h + 1) - (h + 3)[/tex]

We expand the bracket using the distributive property to obtain,

[tex] = 6h + 1 - h - 3[/tex]

We regroup the like terms to obtain,

[tex] = 6h - h + 1 - 3[/tex]

[tex] = 5h -2[/tex]

QUESTION 5

We want to subtract

[tex] -b + 3[/tex]

from

[tex] - 11b - 4[/tex]

We subtract to obtain

[tex]( - 11 b- 4) - ( - b + 3)[/tex]

We expand the brackets to get,

[tex] = - 11 b- 4+ b - 3[/tex]

We regroup the like terns to get,

[tex] = - 11 b+ b - 3 - 4[/tex]

This simplifies to;

[tex] = - 10 b - 7[/tex]