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allsm [11]
3 years ago
6

5 times the sum of 12 and a number is 80 What is the value of the unknown number

Mathematics
1 answer:
kirill115 [55]3 years ago
3 0

Answer:

4

Step-by-step explanation:

5(12+x)=80          Create equation. x is the unknown number.

60+5x=80           Distributive property.

5x=20                  Isolate variable.

x=4                       Divide on both sides by the coefficient.

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