Question

Solve the equation: 2 (x + 2x) - 36
A) X=-18
B) x = 18
cx = -6
D) x = 6

Answer 1

`\boxed{x=6}`

Solution Steps:

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1.) Divide both sides by 2:

• 
  `2` ÷
  `2=` Cancels Out

• 
  `36` ÷
  `2=18`

- We do this first because we need the get rid of the parenthesis in order to solve this like a regular problem. In this case the only way to do so was to divide by 2 to separate the Number/Variable from the parenthesis.

Equation at the end of Step 1:

• 
  `x+2x=18`

2.) Combine x and 2x:

• 
  `x+2x=3x`

- We do this because we can't have 2 variables at the end of the equation so it's best to just combine them.

Equation at the end of Step 2:

• 
  `3x=18`

3.) Divide both sides by 3:

• 
  `3x` ÷
  `3=x`

• 
  `18` ÷
  `3=6`

- We divided for the last step since their was 1 variable connected by a number and another number on the opposite side of the equal.

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