Question

Simplify these expressions
a) 2a + 5a

Answer 1

`\mathsf {7a}`

Explanation:

`\textsf {Here, both terms contain the variable 'a'.}\\\textsf {Hence, they can be added together once the variable}\\\textsf {is taken as a common factor.}`

`\implies \mathsf {2a + 5a}`

`\implies \mathsf {a(2 + 5)}`

`\implies \mathsf {7a}`

Answer 2

7a

Explanation:

To solve this you have combine like terms.

That is, you have to simply add those numbers together.

Let us solve now

2a + 5a

= 7a