Q65. - Algebra 1

Question

Evaluate each expression. (Lesson $1-2$)

$3\cdot 5+1-2$

Step-by-Step Solution

Answer

The value of the expression is 14.

Step 1. Order of operations.

To evaluate any expression involving more than one operation, follow the below order of operations:

• First, evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
• Evaluate the exponents.
• Perform Multiplication and division from left to right.
• Perform addition and subtraction from left to right.

Step 2. Given expression.

$3\cdot 5+1-2$

Step 3. Solve the expression.

Note that division/multiplication is given priority, thus given expression is simplified as:

$3\cdot 5+1-2=15+1-2$

Now further simplify it as:

$\begin{array}{c}15+1-2=16-2\\ =14\end{array}$

Thus,

$3\cdot 5+1-2=14$