Equation of a Linebr br #maths, #math, #ntpc, #rrb, #ssccgl, #sscchsl, #sbiclerk, #sbipo, #ibps,br AMRESH HARSH ACADEMY,br #amreshharshacademy, #amreshchoudhary,br Ntpc, Rrb, Ssccgl, Sscchsl,br Sbiclerk, Sbipo, Ibps, bpsc, Upsc, shortcut tricks, maths tricks, math tricks,br