If 2z+83=14z+5, then z= ?(a) 3(b) 4(c) 34(d) 43
Given: 2z+83=14z+5
⇒2z−14z=5−83
⇒8z−1z4=15−83
⇒7z4=73
⇒z=73×47=43
Hence, z=43