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g100num [7]
2 years ago
14

Please HELP!!! What is the justification for the step taken from line 2 to line 3?

Mathematics
2 answers:
Alex Ar [27]2 years ago
6 0
The subtraction property of equality
Maksim231197 [3]2 years ago
3 0

Answer:

A. The subtraction property of equality

Step-by-step explanation:

We have to find the rule applied to obtain line 3 from line 2.

Now, line 2 is -4x + 9 = 2x + 10 and line 3 is -6x + 9 = 10.

We can see that the only possible way to get line 3 from line 2 is by subtracting 2x from both the sides.

i.e.  -2x - 4x + 9 = -2x + 2x + 10

i.e. -6x + 9 = 10

Hence, the subtraction property of equality is the justification for getting line 3 from line 2.

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hope this helps :)

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