I am thinking of a number. I multiply it by 7 and add 25. I get the same answer if I multiply by 3 and add 93. What is my number?
Let the number be n. We're given two expressions:
To solve for n, we type this equation into our search engine and we get:
n = 17
Let the number be n. We're given two expressions:
- Multiply the number by 7: 7n
- add 25: 7n + 25. <-- Expression 1
- Multiply by 3: 3n
- Add 93: 3n + 93 <-- Expression 2
- The phrase get the same answer means both expression 1 and expression 2 are equal. So we set them equal to each other:
To solve for n, we type this equation into our search engine and we get:
n = 17