1. Set up equations and solve them to find the unknown numbers in the following cases: (a) Add 4 to eight times a number; you get 60. 1. Set up equations and solve them to find the unknown numbers in the following cases: (a) Add 4 to eight times a number; you get 60. October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related