Question

-9=3x+6 what is the value of x?

Answer 1

-5

Explanation:

3x + 6 = -9

3x = -15

x = -5

Answer 2

`\boxed{ \bold { \huge{ \boxed{ \sf{x = - 5}}}}}`

Explanation:

`\sf{ - 9 = 3x + 6}`

Swap the sides of the equation

`\longrightarrow{ \sf{3x + 6 = - 9}}`

Move 6 to right hand side and change its sign

`\longrightarrow{ \sf{3x = - 9 - 6}}`

The negative integers are always added but possess the negative ( - ) sign

`\longrightarrow{ \sf{3x = - 15}}`

Divide both sides by 3

`\longrightarrow{ \sf{ (3x)/(3) = ( - 15)/(3) }}`

Calculate

`\longrightarrow{ \sf{x = - 5}}`

Hope I helped!

Best regards! :D