Aplica la propiedad de la resta de la igualdad para resolver las siguientes ecuaciones a] x+121=214 b]x+4.7=12.8 c]x+81=210 d]x+7/8=12/7 por favor
martinleonardo2
A) x + 121 = 214 b) x + 4.7 = 12.8 c) x + 81 = 210 d) x + 7/8 = 12/7 x = 214 - 121 x = 12.8 - 4.7 x = 210 - 81 x = 12/7 - 7/8 x = 93x = 8.1 x = 129 x = 96/56 - 49/56 x = 47/56 x = 0.839
x = 214 - 121 x = 12.8 - 4.7 x = 210 - 81 x = 12/7 - 7/8
x = 93 x = 8.1 x = 129 x = 96/56 - 49/56
x = 47/56
x = 0.839