Add x to both sides of the equation: 0.15 + x = 27 .
Subtract 0.15 from both sides: x = 27 − 0.15 .
Calculate the value of x : x = 26.85 .
The solution to the equation is 26.85 .
Explanation
Understanding the Problem We are given the equation 0.15 = 27 − x and asked to solve for x . This means we need to isolate x on one side of the equation.
Isolating x To isolate x , we can add x to both sides of the equation, which gives us 0.15 + x = 27 .
Solving for x Next, we subtract 0.15 from both sides of the equation to solve for x : x = 27 − 0.15 .
Calculating the Value of x Now, we perform the subtraction: x = 26.85 .
Final Answer Therefore, the value of x is 26.85 .
Examples
Imagine you're buying something online and the price is $27, but you have a discount that brings the final amount you pay to $0.15. Solving the equation 0.15 = 27 − x helps you find out the value of the discount ( x ) you received. This type of problem is useful in calculating discounts, determining price differences, and understanding how different values relate to each other in everyday financial transactions.
To solve the equation 15 = 27 − x , we isolate x by rearranging the equation to x = 27 − 15 . This results in x = 12 , so the final answer is 12 .
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