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If y = 2x + 6, then the inverse would be:

x = (y - 6) ÷ 2

Reverse the operations in the reverse order to which they are done:

  • +6 added last, so reversed first by -6;
  • x2 done first, so reversed last by ÷2

the brackets are needed to ensure the subtraction is done before the addition.

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14y ago

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