Question

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

Answer 1

Answer:

$\boxed{x=6}$

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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