write two expressions where the solution is 19

The Correct Answer and Explanation is:

Here are two expressions where the solution is 19:

Expression 1:

3 × 6 + 1 = 19

Expression 2:

40 − 21 = 19

✅ Solution:

3 × 6 + 1 = 18 + 1 = 19
40 − 21 = 19

📝 Explanation

Expressions are mathematical phrases that combine numbers, operations, and sometimes variables to represent a value. In this case, the goal was to construct two different expressions that both simplify to 19. Let’s look at each expression step-by-step.

Expression 1: 3 × 6 + 1

This is a combination of multiplication and addition. According to the order of operations (PEMDAS/BODMAS), multiplication must be done before addition:

First, calculate 3 × 6, which gives 18.
Then add 1:
18 + 1 = 19

This expression demonstrates how two operations can be combined to reach a desired number. It emphasizes understanding how order affects the outcome of expressions.

Expression 2: 40 − 21

This is a straightforward subtraction:

Subtracting 21 from 40 gives us 19.
40 − 21 = 19

This expression is simpler and uses only one operation. It reinforces that subtraction can also be used to find or express specific values.

These examples show how different operations—multiplication, addition, and subtraction—can be combined or used individually to reach the same result. In algebra or problem solving, recognizing multiple ways to arrive at a solution is an important skill. It helps students develop flexibility in thinking and deepen their understanding of number relationships and arithmetic.

Additionally, practicing with varied expressions that result in the same answer builds confidence and improves mental math and reasoning skills.