1/2 x +(-7)- 21/4 x (-2)

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asked Jun 19, 2018 146k views

1 Answer

Reallymemorable · Answer 1 · 2018-06-25T11:58:55+0000

1/2 x +(-7)- 2 1/4 x -(-2)
Turn the 2 1/4 into a mixed number:
1/2x + (-7) - 9/4x + 2
Multiply 1/2x by 2/2:
2/4x + (-7) - 9/4x +2
Add common terms:
-7/4x - 5
Turn -7/4x into a mixed number:
-1 3/4x -5

So your answer is
A.) -1 3/4x - 5

1/2 x +(-7)- 21/4 x (-2)

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