Question

(3a-8)+(4-a)=3a-7+4-a=2a-3

Answer 1

Ответ:

(3a-8)+(4-a)=12а-3а^2+12-8а=4а-3а^2+12

Answer 2

Let's simplify the given expression step by step:

(3a - 8) + (4 - a)

= 3a - 8 + 4 - a // Removing the brackets

= (3a - a) - 8 + 4 // Grouping like terms

= 2a - 4 // Simplifying

However, in the second part of the expression, you have written:

3a - 7 + 4 - a

= 2a - 3

This is not correct. If we simplify this expression, we get:

3a - 7 + 4 - a

= 2a - 3

This means that both expressions are equivalent and simplify to 2a - 4 or 2a - 3.