12+7 ×(6-4) what part of simplifying this expression should you perform first?

(6-4)

Step-by-step explanation:

The order of operations, PEMDAS, states that you always simplify the parentheses first.

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

The answer is 38.

Step-by-step explanation: First you subtract 4 from 6 and that gives you 2. Then you add 12+7 which is equal to 19. Finally you multiply 19x2 and that gives you 38.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )