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

Solve The Equation 2 X 2x 36 A X18 B X 18 Cx 6 D X 6 class=

Sagot :

Answer:

[tex]\boxed{x=6}[/tex]

Solution Steps:

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1.) Divide both sides by 2:

  • [tex]2[/tex] ÷ [tex]2=[/tex] Cancels Out
  • [tex]36[/tex] ÷ [tex]2=18[/tex]

 - 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:

  • [tex]x+2x=18[/tex]

2.) Combine x and 2x:

  • [tex]x+2x=3x[/tex]

 - 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:

  • [tex]3x=18[/tex]

3.) Divide both sides by 3:

  • [tex]3x[/tex] ÷ [tex]3=x[/tex]
  • [tex]18[/tex] ÷ [tex]3=6[/tex]

 - 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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