ML Aggarwal CBSE Solutions Class 7 Math 5th Chapter Algebraic Expressions Exercise 5.3 (1) if m = 2, find the value of: (i) 3m – 5 (ii) 9 – 5m (iii) 3m2 – 2m – 7 (iv) 5/2 m – 4 Solution 01 Number: (2) if p = -2, find the value of: (i) 4p […]
Tag: Algebraic Expressions Class 7 Solution
ML Aggarwal CBSE Solutions Class 7 Math Fifth Chapter Algebraic Expressions Exercise 5.2
ML Aggarwal CBSE Solutions Class 7 Math 5th Chapter Algebraic Expressions Exercise 5.2 Exercise 5.2 Solution (1) 7x, -3x (ii) 6x, -11x (iii) -9×2 (iv) 3ab2, -5ab2 (v) 1/2 pq, -1/3 pq (vi) 5x3y, -2/3 x3y (2) Add: (i) 3x, -5x, 7x (ii) 7xy, 2xy, -8xy (iii) -2abc, 3abc, abc (iv) 3mn, -5mn,8mn, -4mn (v) […]
ML Aggarwal CBSE Solutions Class 7 Math Fifth Chapter Algebraic Expressions Exercise 5.1
ML Aggarwal CBSE Solutions Class 7 Math 5th Chapter Algebraic Expressions Exercise 5.1 (1) Form the algebraic expressions using variables, constants and arithmetic operations: (i) 6 more than thrice a number x. (ii) 5 times x is subtracted from 13. (iii) The numbers x an y both squared and added. (iv) Numbers 7 is added […]
RD Sharma Class 7 Math 7th Chapter Algebraic Expressions Exercise 7.4 Solution
Exercise 7.4 Simplify, the algebraic expressions by removing grouping symbols. 1. 2x + (5x – 3y) We get, 2x + (5x – 3y) Since the ‘+’ sign precedes the parentheses, we have to retain the sign of each term in the parentheses when we remove them. = 2x + 5x – 3y = […]
RD Sharma Class 7 Math 7th Chapter Algebraic Expressions Exercise 7.3 Solution
Exercise 7.3 1. Place the last two terms of the following expressions in parentheses preceded by a minus sign: (i) x + y – 3z + y (ii) 3x – 2y – 5z – 4 (iii) 3a – 2b + 4c – 5 (iv) 7a + 3b + 2c + 4 (v) 2a2 – […]
RD Sharma Class 7 Math 7th Chapter Algebraic Expressions Exercise 7.2 Solution
Exercise 7.2 1. Add the following: (i) 3x and 7x Solution: We have 3x + 7x = (3 + 7) x = 10x (ii) -5xy and 9xy Solution: We have -5xy + 9xy = (-5 + 9)xy = 4xy 2. Simplify each of the following: (i) 7x3y +9yx3 Solution: Given 7x3y+9yx3 7x3y+9yx3 […]
RD Sharma Class 7 Math 7th Chapter Algebraic Expressions Exercise 7.1 Solution
Exercise 7.1 1. Identify the monomials, binomials, trinomials and quadrinomials from the following expressions: (i) a2 (ii) a2 − b2 (iii) x3 + y3 + z3 (iv) x3 + y3 + z3 + 3xyz (v) 7 + 5 (vi) abc + 1 (vii) 3x – 2 + 5 (viii) 2x – 3y + 4 […]