Concept explainers
the solution of the proportion
Answer to Problem 4DGP
Explanation of Solution
Given:
The proportion,
Concept Used:
- To get rid of a number in addition from one side, subtract the same number from both sides of equal sign.
- To get rid of a number in subtraction from one side, add the same number both sides of equal sign.
- To get rid of a number in multiplication from one side, divide the same number from both sides of equal sign.
- To get rid of a number in division from one side, multiply the same number both sides of equal sign.
- Two numbers with similar sign always get added and the resulting number will carry the similar sign.
- Two numbers with opposite signs always get subtracted and the resulting number will carry the sign of larger number.
- The product/quotient of two similar sign numbers is always positive.
- The product/quotient of two numbers with opposite signs is always negative.
Rules of Addition/ Subtraction:
Rules of Multiplication/ Division:
Calculation:
In order to solve the given equation
Here to isolate n on both side, first multiply both sides by 10 and then simplify the like terms and then subtract both sides by 3n and then add both sides by 4 and then simplify further as shown below,
Thus, the solution of the proportion is
Chapter 7 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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