The Sum Of Twice A Number And 13 Is 75, One of the fundamental concepts in mathematics is the use of variables to represent unknown, General, the-sum-of-twice-a-number-and-13-is-75, Timnesia
One of the fundamental concepts in mathematics is the use of variables to represent unknown quantities. In algebra, we often use letters to represent these variables, and we can use them to write equations that describe relationships between different quantities.
One common type of equation is the "two-step" equation, which involves performing two operations to isolate the variable. For example, consider the equation "2x + 13 = 75." In this equation, x represents an unknown number, and we need to find its value.
To solve this equation, we can start by subtracting 13 from both sides, which gives us "2x = 62." We can then divide both sides by 2 to isolate x, which gives us "x = 31." Therefore, the solution to the equation "the sum of twice a number and 13 is 75" is x = 31.
This type of equation can be useful in a variety of contexts. For example, if we know that the sum of twice a number and 13 is 75, we can use this information to solve other problems. We might use this equation to find the value of a variable in a more complex equation, or we might use it to solve a word problem that involves finding an unknown quantity.
Overall, the use of variables and equations is an important tool in mathematics, and the ability to solve two-step equations is a fundamental skill that can be applied in many contexts. By understanding the relationship between different quantities and using algebraic techniques to isolate variables, we can solve problems and make sense of the world around us.