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Nookie1986 [14]
3 years ago
7

Two different ways to find the difference for 12-3

Mathematics
2 answers:
Gennadij [26K]3 years ago
8 0
For this case we have:

 way 1:
 
Common factor 3 in the expression:
 12-3 = 3 (4-1)

12-3 = 3 (3)

12-3 = 3 (9)

 Way 2:
 
Write the number 12 as the sum of 4 times 3:
 12-3 = (3 + 3 + 3 + 3) - 3

 Then, for associative property:
 12-3 = 3 + 3 + 3 + (3 - 3)

12-3 = 3 + 3 + 3 + (0)

12-3 = 3 + 3 + 3

12-3 = 9
Scrat [10]3 years ago
7 0
12-3=9
9+3=12
12-9=3

I hope this helped!
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Solve the equation<br> 3(y - 4) + 3 = 9.<br> Answer y =
erica [24]

Answer:

3(y-4) +  3 = 9

3y -12 +3=9

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3y = 9+9

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Step-by-step explanation:

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Jackson's front door is 42 inches wide and 84 inches tall. He got a circular table with a 96 inch diameter. Will he be able to f
chubhunter [2.5K]
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Solve. 3(x-6)-2(2x+3)=14
coldgirl [10]

Answer:

x=-38

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3(x−6)−2(2x+3)=14

(3)(x)+(3)(−6)+(−2)(2x)+(−2)(3)=14(Distribute)

3x+−18+−4x+−6=14

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Step 3: Divide both sides by -1.

−x

−1

=

38

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3 years ago
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