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Maria solved the equation 34=x+19. Although her final answer was correct, she could have found it in a simpler way. Which sentence best explains why?

A: 19 should be added to the left side and 34 added to the right side.


B: 34 should be subtracted from both sides.


C: The variable must be moved to the left side of the equation.


D: 19 should have been subtracted from, not added to, both sides of the equation.

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Answer:

D: 19 should have been subtracted from, not added to, both sides of the equation.

Step-by-step explanation:

Because if we subtract 19 from both sides, we directly get the value of x.

Equation:-

x + 19 = 34

Subtracting 19 from both sides,

=> x + 19 - 19 = 34 - 19

=> x = 15

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