Question

a = 0 , b = -1 (Negative 1)

2a + 2b
solve this question.
By placing the value of a and b

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Answer 1

Step-by-step explanation:

2a +2b

=2(0) +2(-1)

=0+(-2)

= -2

Answer 2

Answer:

2(a+b)

To find: Addition of two numbers

Step-by-step explanation:

Solution:

Addition is defined as the sum of two numbers.

According to the arithmetic rule, a + b = c.

For example, 3a + 4a in this form the first expression is added with second expression. So, we get 7a.

Similarly adding 2a + 2b in this form the variables are different and the values are same.

If we have same values that can be considered as common value.

Hence the Addition of two numbers is .2(a+b).