Question

2 ( 2a-5 ) - ( a -3 )

Answer 1

`3a - 7`

Explanation:

Greetings!!

To solve the expression first write the expression

`2(2a - 5) - (a - 3)`

Apply the distributive law: -(a-b) = -a+b

`- (a - 3) = - a + 3`

`= 2(2a - 5) - a + 3`

Expand by the distributive law: a(b-c) = ab-ac

`2.2a - 2.5 = 4a - 10`

substitute into the expression

`= 4a - 10 - a + 3`

Group like terms

`= 4a - a - 10 + 3 \\ </p><p> = 3a - 7`

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Hope it helps!!!

Answer 2

3a - 7

Explanation:

2(2a-5)-(a-3)=4a-10-a+3=3a-7