Concept explainers
(a)
Find the correct solution of the equation:y1
(a)
Answer to Problem 45HP
3
Explanation of Solution
Given:
The Equation:
Concept Used:
Addition or Subtraction Property of Equality:
If
The property that states that if you add or subtract the same number to both sides of an equation, the sides remain equal (i.e., the equation continues to be true.)
Multiplication and Division Properties of Equality:
If
If
In other words, if two expressions are equal to each other and you multiply or divide (except for 0) the exact same constant to both sides, the two sides will remain equal.
Distributive method of multiplication:
To solve the equation, we need to open the parenthesis by using the Distributive method of multiplication.
Calculation:
The steps and the solution given in the question is not correct. Correct steps are given below.
The equation:
Step 1: Open the Parenthesis:
Error: In our question it has given as
Steps according to the question | Actual correct steps | Explanation of each step |
Equation | ||
Open the parenthesis by using the distributive method of multiplication. | ||
Subtract 10 from both sides. | ||
Simplify the left and right side.
In the left: In the right: | ||
Divide by 2, the coefficient of the variable g. | ||
Solution of the equation. |
Thus, the correct solution of the equation:
(b)
Find the correct solution of the equation.
(b)
Answer to Problem 45HP
Explanation of Solution
Given:
The equation:
Concept Used:
Addition or Subtraction Property of Equality:
If
The property that states that if you add or subtract the same number to both sides of an equation, the sides remain equal (i.e., the equation continues to be true.)
Multiplication and Division Properties of Equality:
If
If
In other words, if two expressions are equal to each other and you multiply or divide (except for 0) the exact same constant to both sides, the two sides will remain equal.
Calculation:
The steps and the solution of the equation
Steps from the question | Explanation of each step |
The original equation. | |
Subtract 2d from both sides . | |
Simplify the left and right side.
In the left: In the right: | |
Divide each side by 3, the coefficient the variable ‘d’ | |
The correct solution of the equation |
Thus, the correct solution of the equation
(c)
Find the correct solution of the equation:
(c)
Answer to Problem 45HP
Explanation of Solution
Given:
The equation:
Concept Used:
Addition or Subtraction Property of Equality:
If
The property that states that if you add or subtract the same number to both sides of an equation, the sides remain equal (i.e., the equation continues to be true.)
Multiplication and Division Properties of Equality:
If
If
In other words, if two expressions are equal to each other and you multiply or divide (except for 0) the exact same constant to both sides, the two sides will remain equal.
Calculation:
The steps and the solution given in the question is not correct. Correct steps are given below.
Steps according to the question | Actual correct steps | Explanation of each step |
Equation | ||
Add In the left: In the right: | ||
Actually it should be: | Simplify
In the left: In the right: | |
Divide each side by 13, the coefficient of ‘z’ | ||
Solution of the equation.. |
Thus, the correct solution of the equation
Chapter 2 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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