CBSE NCERT CLASS 7 MATHS EXERCISE 12.2 QUESTION 1 I ncert solution of class 7

CBSE NCERT CLASS 7 MATHS EXERCISE 12.2 QUESTION 1,
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Simplify combining like terms:
(i) 21b - 32 + 7b - 20b,
(ii) - z² + 13z² - 5z + 7z³ - 15z,
(ii) p - (p - q) - q - (q - p),
(iv) 3a - 2b - ab - (a - b + ab) + 3ab + b - a,
(v) 5x²y - 5x² + 3yx² - 3y² + x² - y²+ 8xy² - 3y²,
(vi) (3y² + 5y - 4) - (8y - y² - 4),
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Solutions of Exercise 12.2:- • CLASS 7 MATHS EXERCISE...
Solutions of Exercise 12.1:- • CLASS 7 MATHS EXERCISE...
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Solutions of Exercise 11.4:- • CLASS 7 MATHS EXERCISE...
Solutions of Exercise 11.3 :- • CLASS 7 MATHS EXERCISE...
Solutions of Exercise 11.2 :- • CLASS 7 MATHS EXERCISE...
Solutions of Exercise 11.1 :- • CLASS 7 MATHS EXERCISE...
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