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.

raphealnwobi

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

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