1. Set up equations and solve them to find the unknown numbers in the following cases: (d) When I subtracted 11 from twice a number, the result was 15. 1. Set up equations and solve them to find the unknown numbers in the following cases: (d) When I subtracted 11 from twice a number the result was 15. October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related