2a - 3b - [3a - 2b - {a-c-(a - 2b)}]

1.	2a - 3b - [3a - 2b - {a-c-(a - 2b)}]
Answer» $\large\boxed{\sf\green{Solution~:-}}$ $: \implies\sf\red {2a - 3b - [3a - 2b - {(a-c-(a - 2b))}}]$ Firstly, take terms outside the brackets. $\boxed{\sf\green{Note~:-~While~removing~the~brackets~the~signs~will~also~be~changed}}$ $: \implies\bold{2a - 3b - [3a - 2b - {(a-c-a + 2b)}}]$ $: \implies\bold{2a - 3b - [3a - 2b - {a + c + a - 2b}}]$ $: \implies\bold{2a - 3b - 3a + 2b + a + c + a - 2b}$ Now add the LIKE terms. $: \implies\bold{2a - 3a - 3b+ 2b - 2b+ a + a + c}$ $: \implies\bold{ - a - 3b+ 2a+ c}$ Answer ➣ $\large\boxed{\sf\blue{3b + 2a - a + c}}$ ━━━━━━━━━━━ Know more :- Signs are changed on the following bases :- $\bold{(-)~(-)~=~+}$ $\bold{(+)~(+)~=~+}$ $\bold{(+)~(-)~=~-}$ $\bold{(-)~(+)~=~-}$ [ REFER to the ATTACHED image too ]

Answer»

$\large\boxed{\sf\green{Solution~:-}}$