What is x? Solve puzzles by finding where two lines cross
Algebra is like a puzzle: you have a mystery number (called x), and you need to figure out what it is. If someone tells you x + 3 = 7, you're looking for the number that, when you add 3 to it, gives you 7. The answer? x = 4, because 4 + 3 = 7.
But here's the cool part: you can see the answer on a graph. Plot y = x + 3 as a line and y = 7 as another line. Where they cross is your answer — the x-value at that point is the mystery number.
In this lesson, you'll solve algebra puzzles visually, starting simple and building up. No memorizing rules — just find where the lines meet, and you've solved the equation!