Answer:
Frank, you're wrong! x=x is a variable, where 12=12 is a specific number. x can represent any number, even 12. So Frank's answer is more general, whereas Sarah's answer is specific.
Explanation:
2(x+12)+6=3(x+6)+(12-x)
2x+24+6=3x+18+12-x
2x+30=2x+30
2x+30-30=2x+30-30
2x=2x
x=x, or...
2x-2x+30=2x-2x+30
30=30
Answer:
World War 1 soldiers had to fight at any time ,day or night.So European glowworms at night guided them.That is how they are clever.
He overcome his problem by building windmills
Answer:
27.3 days
Explanation:
There really isn't much to explain, but I had to have more letters to submit the answer.