Раскройте скобки (X-3)+2 -15-(11+y) 3(a-6)+9

Question

Раскройте скобки
(X-3)+2
-15-(11+y)
3(a-6)+9

Comments

(X-3)+2=x-3+2=x-1-15-(11+y)=-15-11-y=-26-y3(a-6)+9=3a-18+9=3a-9

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1) x-3+2= x-12) -15-11-y= -26 - y3) 3 a - 18 + 9 = 3a - 9

Answer 1

(X-3)+2=x-3+2=x-1

-15-(11+y)=-15-11-y=-26-y

3(a-6)+9=3a-18+9=3a-9