
Get live Maths 1-on-1 Classs - Class 6 to 12
Last updated at March 30, 2023 by Teachoo
Ex 4.4, 1 Set up equations and solve them to find the unknown numbers in the following cases: (c) If I take three-fourths of a number and add 3 to it, I get 21 Let the number = m Given that, Adding three-fourth of m to 3 = 21 So, 3/4 m + 3 = 21 3/4 m = 21 − 3 3/4 m = 18 3m = 18 × 4 3m = 72 m = 72/3 m = 24