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allochka39001 [22]
3 years ago
11

Solve for a.

Mathematics
2 answers:
masya89 [10]3 years ago
5 0
A + (-7) is the same as a - 7, so you could rewrite it as
a - 7 = -17
+ 7
a = -10
So your answer is a = -10, I hope this helps!
alina1380 [7]3 years ago
5 0

Answer:

-10

Step-by-step explanation:

just took the test

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Step-by-step explanation:

Perpendicular lines have opposite slopes., meaning the signs are opposite, and the numerator and denominator are flipped.

Here's another example:

If line a had a slope of 4/5, line b would have a slope of -5/4, if the lines are perpendicular.

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