# What is the value of x? 6 8 10 12

# x + 1 = 9

An equation is a mathematical statement with an 'equal to' symbol between two algebraic expressions that have equal values.

## Answer: x = 8

An equation is like a weighing balance with equal weights on both sides. If we add or subtract the same number from both sides of an equation, it still holds.

**Explanation:**

Subtract 1 on both sides of the equation x + 1 = 9

x + 1 - 1 = 9 - 1

x = 8