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