Question

What is -5x -10= -20

a.2

b.3

c.7

d.6

Answer 1

• Option a ( 2 ) is the answer

Explanation:

In this question we are given with an equation that is -5x - 10 = -20 . And we are asked to find it's solution ( value of x ).

Solution : -

`\longmapsto \qquad \: - 5x - 10 = - 20`

Step 1 : Adding 10 to both sides :

`\longmapsto \qquad \: - 5x - \cancel{10 }+ \cancel{10} = - \bold{20 }+ \bold{10}`

On further calculations , We get :

`\longmapsto \qquad \: - 5x = - 10`

Step 2 : Dividing with -5 on both sides :

`\longmapsto \qquad \: \frac{ \cancel{- 5}x}{ \cancel{- 5}} = \cancel{ ( - 10)/( - 5) }`

On further calculations , we get :

`\longmapsto \qquad \: \ \: \pink{\underline{ \boxed{\frak{x = 2}}}}`

• Henceforth , value of x is 2 that means option a is correct .

Verifying : -

Now we're verifying our answer by substituting value of x in given equation. So ,

• -5x - 10 = -20

• -5 ( 2 ) - 10 = -20

• -10 - 10 = -20

• -20 = -20

• L.H.S = R.H.S

• Hence , Verified .

Therefore , our answer is correct .

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Answer 2

`\huge\text{Hey there!}`

`\mathsf{-5x -10= -20}\\\\\large\text{ADD 10 to BOTH SIDES}\\\mathsf{-5x - 10 + 10 = -20 + 10}\\\\\large\text{SIMPLIFY IT!}\\\mathsf{-5x = -20 + 10}\\\mathsf{-5x = -10}\\\\\large\text{DIVIDE -5 to BOTH SIDES}\\\mathsf{(-5x)/(-5)= (-10)/(-5)}\\\\\large\text{SIMPLIFY IT!}\\\mathsf{x = (-10)/(-5)}\\\\\mathsf{x = 2}\\\\\\\huge\textbf{Therefore, your answer is: \boxed{\mathsf{Option \ A. \ 2}}}\huge\checkmark`

~
`\frak{Amphitrite1040:)}`