Question

what should be subtracted from -12 to obtain -30? Do using X formula.​

Answer 1

Answer:

here is your answer

Step-by-step explanation:

$- 12 - (x) = - 30 \\ = > x = > - 30 + 12 \\ = x = - 18$

Answer 2

Answer:

• The other number is 18.

Step-by-step explanation:

To Find:

• What should be subtracted from -12 to obtain -30?

Let us assume:

• The other number be x.

Then, according to the question:

$\sf{\longrightarrow-12-x=-30}$

Transposing 12 from LHS to RHS and changing its sign,

$\sf{\longrightarrow -x=-30+12}$

Adding the numbers,

$\sf{\longrightarrow -x=-18}$

Solving further,

$\sf{\longrightarrow \not\!{-}x=\not\!{-}18}$

$\sf{\longrightarrow x=18}$

Hence,

• x = 18

Therefore,

• The other number is 18.

Verification:

LHS:

⇝ - 12 - 18

⇝ -30

RHS:

⇝ -30

As,

• LHS = RHS

Hence, Verified.