LingLingAOB LingLingAOB
  • 06-07-2018
  • Geography
contestada

four times the difference of a number and 7 is 12
this is math not geography sorry.

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3ricaaa
3ricaaa 3ricaaa
  • 06-07-2018
4(n - 7) = 12
Distribute the 4.
4n -28 = 12
Add 28 to both sides.
4n = 40
Divide by 4.

The answer is n = 10
Answer Link
claudettoterohil
claudettoterohil claudettoterohil
  • 08-07-2018
4(y - 7) = 12

Simplify both sides:
4(y - 7) = 12

(4)(y) + (4)(- 7) = 12 (Distribute)

4y+  - 28 = 12

4y - 28 = 12


Add 28 to both sides:
4y - 28 + 28 = 12 + 28

4y = 40

Divide both sides by 4:
4y/4 = 40/4

y = 10


Answer:  y = 10



Hope that helps!!! ( y = 10)

Answer Link

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