simplify:
21b - 32 + 7b - 20b

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Solution

21b – 32 + 7 b -2ab

21 b -2ab +7b -32

8b – 32

8( b -4 )

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Similar questions

21 b - 32 + 7 b - 20 b

Question 1 (i)

Simplify combining like terms:

21b - 32 + 7b - 20b

The expression 21b - 32 + 7b - 20b on simplification gives

Simplify combining like terms:

(i) 21b − 32 + 7b − 20b

(ii) − z² + 13z² − 5z + 7z³ − 15z

(iii) p − (p − q) − q − (q − p)

(iv) 3a − 2b − ab − (a − b + ab) + 3ab + b − a

(v) 5x²y − 5x² + 3y x² − 3y² + x²− y²+ 8xy² −3y²

(vi) (3 y²+ 5y − 4) − (8y − y² − 4)

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