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7x + 3 * (8 * 9) = 1224. What is the value of X?

PsychoBaker  Jul 1, 2017

Best Answer 

 #1
avatar+4036 
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7x + 3 * (8 * 9)  =  1224                  We don't need to keep the parenthesees here.

 

7x + 3 * 8 * 9    =  1224                  Replace   3 * 8 * 9   with   216

 

7x + 216  =  1224                           Subtract   216   from both sides of this equation.

 

7x + 216 - 216  =  1224 - 216

 

7x  =  1008                                     Divide both sides of this equation by 7.

 

7x / 7  =  1008 / 7

 

x  =  144

hectictar  Jul 1, 2017
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1+0 Answers

 #1
avatar+4036 
+2
Best Answer

7x + 3 * (8 * 9)  =  1224                  We don't need to keep the parenthesees here.

 

7x + 3 * 8 * 9    =  1224                  Replace   3 * 8 * 9   with   216

 

7x + 216  =  1224                           Subtract   216   from both sides of this equation.

 

7x + 216 - 216  =  1224 - 216

 

7x  =  1008                                     Divide both sides of this equation by 7.

 

7x / 7  =  1008 / 7

 

x  =  144

hectictar  Jul 1, 2017

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