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  • 03-12-2018
  • Mathematics
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solve for x math question

solve for x math question class=

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Ammimochi
Ammimochi Ammimochi
  • 03-12-2018

Square both sides

9(x + 2) = x + 4

Expand

9x + 18 = x + 4

Subtract x from both sides

9x + 18 - x = 4

Simplify 9x + 18 - x to 8x + 18

8x + 18 = 4

Subtract 18 from both sides

8x = 4 - 18

Simplify 4 - 18 to -14

8x = -14

Divide both sides by 8

x = -14/8

Simplify 14/8 to 7/4

C. x = -7/4

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