Question

−12 = 3 − 2k − 3k
Can someone show how to solve this step by step

Answer 1

u want to solve for k right ?

Answer 2

−12 = 3 − 2k − 3k
-12=2-5k
now what do i do ?

Answer 3

I ment
-12=3-5k

Answer 4

-12=3-2k-3k
-12=3-5k
-15=-5k
15=5k
3=k

Answer 5

\[\huge{-12=2-5k}\]
\[\huge{-12-2=-5k}\]
\[\huge{-15=-5k}\]
\[\huge{5k=15}\]
\[\huge{k=\frac{15}{5}=3}\]

Answer 6

@ivan514 why do you subtract 12-3 rather than add

Answer 7

−12−3=−5k
At this step why do we subtract ?

Answer 8

-12=3-5k
isolate variable therefore
(-3)-12=3-5k(-3)
that will give you isolated variable on right side.

Answer 9

So when we move a number we give it the opposite operation right?

Answer 10

yes .. transposing

Answer 11

transposing ?

Answer 12

\[\huge{x+a=b}\]
\[\huge{x+a-a=b-a}\] subtracting both sides by a
\[\huge{x=b-a}\] hence a gets opposite sign there in right hand side

transposing is the name of this process

Answer 13

Thanks

Answer 14

ur welcome and best of luck

Answer 15

=)