find an expression which represents the sum of (3x + 9y) and (5x + 7y) in simplest terms.
find an expression which represents the sum of (3x + 9y) and (5x + 7y) in simplest terms.
Answer
Explanation:
Step1: Write the sum expression
To find the sum of ((3x + 9y)) and ((5x + 7y)), we write the expression as ((3x + 9y)+(5x + 7y)).
Step2: Combine like terms
First, combine the (x)-terms: (3x+5x = 8x). Then, combine the (y)-terms: (9y + 7y=16y). So the simplified expression is (8x + 16y).
Answer:
(8x + 16y)