Simplify (-k + 4) + (-2 + 3k).

Question

anonymous · Answer

(-k + 4) + (-2 + 3k)

-k +4 -2 +3k

2 + 2k

anonymous · Answer

Just solve what's inside the parenthesis and then combine like terms.

cj49 · Answer

k=-1

anonymous · Answer

oh ok thanks

mokeira · Answer

$$(-k+4)+(-2+3k)$$
open up the brackets 
$$-k+4-2+3k$$
$$3k-k+4-2$$
$$2k+2$$

mokeira · Answer

@cj49  that is not true

idealist10 · Answer

(-k+4)+(-2+3k)
-k+3k+4+(-2)
2k+4-2
2k+2
Answer: 2k+2

cj49 · Answer

2k+2=0
k=-2/2
k= -1

anonymous · Answer

what about this question guys               I want to know how you did it

Simplify the following expression:

5x + 6 - x + 12

anonymous · Answer

2 + 2k = 0

Subtract 2 from both sides.
2k = -2

Divide both sides by 2.
k = -1

So that is true.

anonymous · Answer

Wow I type way too slow.

anonymous · Answer

it looks like the answer was 2k+2

anonymous · Answer

Well it is 2k+2 because the problem told you to simplify.

idealist10 · Answer

5x-x+6+12
=4x+18
Answer: 4x+18

anonymous · Answer

It would be k=-1 if it asked you to solve for k, but it did not.

anonymous · Answer

what about this question guys               I want to know how you did it

Simplify the following expression:

5x + 6 - x + 12

mokeira · Answer

it is an expression not equation...there is no equal sign

mokeira · Answer

@cj49

cj49 · Answer

ohk.. i thought we have to find k

mokeira · Answer

i also equated it but when i looked again i realized it is an expression