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3 votes
-4 ( 3x - 7 ) please help me somebody I dont understand i-ready AT ALL! For 25 pts.

User NPras
by
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2 Answers

2 votes

I think its this... Answer: x = 11

Step-by-step explanation: C is the center of circle described around a triangle ΔPQR or circumcenter, and according to this :PC = RC = QCPC = RC3x + 7 = 5x - 15 => 5x - 3x = 7 + 15 => 2x = 22 => x = 22/2 = 11x = 11Check:RC = QC5x - 15 = 51 - x => 5x + x = 51 + 15 => 6x = 66 => x = 66/6 = 11x = 11

Hope it helped tried my best to solve this!! :]

User Idealmind
by
8.3k points
5 votes

Answer: -12x+28

Explanation:

The -4 distributes to everything in the parenthesis.

-4*3x = -12x

-4*-7 = 28

So you basically put those together and end up with -12x+28

User Reed Hedges
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8.0k points

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