yolo12389
yolo12389 yolo12389
  • 08-07-2017
  • Mathematics
contestada

-25 = -4r + 5 please help

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Equanimity
Equanimity Equanimity
  • 08-07-2017
-4r + 5 = -25
Subtract 5 from both sides.
-4r = -30
Divide both sides by -4.
r = 7.5

I hope this helps!
Answer Link
Nick911 Nick911
  • 08-07-2017
-25=-4r+5
Subtract 5 to each side
-25-5=-4r+5-5
-30=-4r
Divided -4 to each side
-30/-4=-4r/-4
7.5=r
Check:
-25=-4r+5
Substitute r with 7.5
-25=-4(7.5)+5
-25=-30+5
-25=-25. As a result, r=7.5. Hope it help!
Answer Link

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