Fractions and Decimals

Discrete Mathematics

Differential Equations

Solved on Dec 04, 2023

Find the sum of $(-7a - 3b)$ and $9a$ . Enter the correct answer.

STEP 1

Assumptions
1. We are adding two algebraic expressions: $(-7a - 3b)$ and $9a$ .
2. We will combine like terms to simplify the expression.

STEP 2

Write down the expressions to be added.
$(-7a - 3b) + 9a$

STEP 3

Distribute the addition over the terms inside the parentheses.
$-7a - 3b + 9a$

STEP 4

Combine the like terms, which are the terms with the variable $a$ .
$(-7a + 9a) - 3b$

STEP 5

Add the coefficients of the like terms $a$ .
$2a - 3b$
The simplified expression is $2a - 3b$ .

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