Question

3(x+ 7) = -12
x + 7 =
X =

Answer 1

x = - 11

x + 7 = -4

Explanation:

`3(x + 7) = - 12`

Multiply each term in parentheses by 3

`3x + 3 * 7 = - 12`

Multiply 3 and 7

`3x + 21 = - 12`

Move the constant to the right side and change the sign

`3x = - 12 - 21`

Find the sum of negative numbers

`3x = - 33`

Divide both side by the same number

`x = - 11`

= x + 7

= -11 + 7

Add the term - 11 + 7

= -4

Answer 2

Hey ! mate

Answer:

• x + 7 = -4

• x = -11

Explanation:

In this question we have given an equation that is 3( x + 7 ) = -12 and we have asked to find the value of x + 7 and x .

We are starting our solution from here :

`\longmapsto \: 3( x + 7 ) = -12`

Transposing 3 to right hand side :

`\longmapsto \: x + 7 = ( - 12)/(3)`

Now , dividing -12 by 3 :

`\longmapsto \: \blue{\boxed{x + 7 = -4}}`

• Therefore , value of x + 7 is - 4 .

Now ,

`\longmapsto \:x + 7 = - 4`

Transposing 7 to right hand side :

`\longmapsto \:x = - 4 - 7`

`\longmapsto \: \blue{ \boxed{x = - 11}}`

• Therefore , value of x is -11 .

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