Решить уравнение 7x -11= 10x +16
7x -11= 10x +16
7х -10х = 16 +11
-3х = 27
х = 27 : (-3)
х = -9
Проверка:
7*(-9) - 11 = -63-11 = -74
10*(-9) +16 = -90 +16 = -74
-74= -74
7х-11=10х+16 7х-10х=16+11 -3х=27 Х=27/-3 Х=-9