Algebra is like a puzzle game with numbers and letters! Instead of just using numbers, we use letters (called variables) to represent unknown values. It's a powerful tool that helps us solve real-world problems and discover patterns in math.
If we have the equation: x + 5 = 12
We can solve for x by subtracting 5 from both sides:
x = 12 - 5
x = 7
If a rectangle has a width of 'w' and a length of 'l', its area is:
Area = w × l
If w = 5 and l = 3, then:
Area = 5 × 3 = 15
Solve for x in the following equation: