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Bernard solved the equation 5 x + (negative 4) = 6 x + 4 using algebra tiles. Which explains why Bernard added 5 negative x-tiles to both sides in the first step of the
solution?
He wanted to create zero pairs on the left side of the equation to get a positive coefficient of x on the right side.
He wanted to combine more negative tiles with the 4 negative tiles on the left side of the equation.
He wanted to remove the larger coefficient on the left side of the equation.
He wanted to have 10 x-tiles on the left side of the equation.

Sagot :

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Answer:

To find why he would do this, we need to understand what all the possible first steps are in this equation.

You could add 4 to both sides.

You could subtract 4 from both sides.

You could subtract 5x from both sides.

You could subtract 6x from both sides.

Any of these work. In Bernard's case, he added 5 negative x tiles, meaning he subtracted. C and D already make no sense, but allow me to further explain. By him subtracting 5x from both sides, the equation turns into:

-4 = x + 4

By this point, he can just subtract 4 from both sides to find the value of x. But the question asks for why he did the first step. Therefore, it would

Answer:

A

Step-by-step explanation:

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