3 years ago

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:

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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