Respuesta :
Answer: 70a + 21b
Step-by-step explanation:
By The Distributive Property, we can multiply a sum by multiplying each addend separately and then add the products,
That is, a(b+c) = ab + ac,
Here, the given expression is,
7 (10a + 3b),
By the above property,
We can write,
7 (10a + 3b) = 7 × 10a + 7 × 3b = 70a + 21b
Where, 70a and 21b are two different terms,
Thus, the required expression is 70a + 21b.
The sum of the expression 70a and 21b is equivalent to 7(10a + 3b).
Equation
An equation is an expression that is used to show the relationship between two or more variables and numbers.
Given the expression:
- 7(10a + 3b)
Opening the bracket:
- = 70a + 21b
The sum of the expression 70a and 21b is equivalent to 7(10a + 3b).
Find out more on equation at: https://brainly.com/question/13763238