Question

Solve the equation
6x−7+2x=−79
x= what

Answer 1

`\boxed{\boxed{\sf x=-9}}`

Explanation:

`\sf 6x-7+2x=-79`

Combine like terms:

• 
  `\sf 6x+2x-7=-79`

• 
  `\sf 8x-7=-79`

Add 7 from both sides:

• 
  `\sf 8x-7+7=-79+7`

• 
  `\sf 8x=-72`

Divide both sides by 8:

• 
  `\sf \cfrac{8x}{8}=\cfrac{-72}{8}`

• 
  `\sf x=-9`

___________________________