Concept explainers
Explain how you can use a rule for subtracting integers to help subtract linear expression
Explanation of Solution
Concept Used:
To subtract two or more monomials that are like terms, subtract the coefficients; keep the variables and exponents on the variables the same. on the variables the same.
Rule for subtracting the integers:
Rule 1: When the two numbers are with same sign (positive or negative) always add the numbers and put their corresponding sign of the numbers (positive or negative)
Example: 78 + 90 = 168 (both are positive)
− 78 − 90 = − 168 (both numbers are negative)
Rule 2: When one number is positive and other number is negative, always do the subtraction and put the sign of the bigger number.
Example: − 78 + 178 = + 100 (as the bigger number 178 is positive, so the answer will be positive after the subtraction).
Example: +78 − 178 = − 100 (as the bigger number 178 is Negative, so the answer will be Negative after the subtraction).
Rule for subtracting the linear expression:
Example:
Chapter 7 Solutions
Glencoe Math Accelerated, Student Edition
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