Question

Solve for x:
x + 3x - 19 = 17

Answer 1

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

Solution Steps:

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1.) Combine x and 3x:

• 
  `x+3x=4x`

- We combine the
`(x)` variables because to get to the end sum of the equation, there can only be 1 variable. So to get the 1, you combine like terms.

2.) Add 19 to both sides:

• 
  `-19+19=` Cancels Out

• 
  `17+19=36`

- We do this to get 1 number left over. To do this you do the opposite of what you see. In this case we have a negative 19, so you add 19 on each side of the equals.

3.) Divide both sides by 4:

• 
  `4x` ÷
  `4=x`

• 
  `36` ÷
  `4=9`

- We do this to get x alone. To do this you do the opposite of what you see. In this case we have
`4(x)` which is multiplying, so you divide by 4 on each side.

So your answer is
`\bold{x=9}`.

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