Решите уравнение а) x+186=300 б) a-94=121.
Х=300-186=114 а=121+94=215
X + 186 =300 x = 300 - 186 x = 114 ___________ 114 + 186 = 300 300 = 300 a - 94 = 121 a = 121 + 94 a = 215 ___________ 215 - 94 = 121 121 = 121
a - 94 = 121