Упростите выражения.

Question

Упростите выражения.

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Answer 1

3b+(5-7b)=3b+5-7b=5-4b
-(8c-4)-4=-8c+4-4=-8c
3(8a-4)+6a=24a-12+6a=18a-12
7p-2(3p-1)=7p-6p+2=p+2
x-(x-(2x-4))=x-x-2x+4=-2x+4

Comments

Спасибо.

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5x+(11-7x)=5x+11-7x=-2x+11

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-3n-(8m-3n)=-3n-8m+3n=8m

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5(8-c)+11c=40-5c+11c=40+6c

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

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7b-(3b-(2-3b))=7b-(3b-2+3b)=7b-3b+2-3b=b+2