helpme7686
helpme7686 helpme7686
  • 06-10-2022
  • Mathematics
contestada

-4x + 9 = -7x - 12
+7 +7x
3x + 9 = 12
-9 -9
3x/3 = 3/3
x = 1
What is the error? How to fix the mistake. Solve the equation.​

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