3. Three times the result of subtracting a certain number from 7 gives the san answer as adding eleven to the number. Find the number. \( 3 \times(7-x)= \) 4. I think of a number. If I divide the sum of 6 and the number by 3 , the result
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The Deep Dive
Did you know that equations were first introduced in ancient civilizations, like Babylon around 2000 BCE? They used clay tablets to solve problems related to trade and land measurement! This early form of algebra shows that humans have been fascinated with numbers and their relationships for thousands of years. In the real world, equations aren’t just for math classes. Engineers, scientists, and even economists use them daily to model behaviors, predict outcomes, and make informed decisions. For instance, when designing a bridge, engineers will create equations to determine load capacity, ensuring everything is safe and sound. Equations are the backbone of so many fields!