7/8x = -1 - (3/4)^2
7/8x = -1 - 9/167/8x = -16/16 - 9/167/8x = -25/16
x = (-25/16) / (7/8)x = (-25/16) * (8/7)x = -200/112x = -25/14
Ответ: x = -25/14.
7/8x = -1 - (3/4)^2
7/8x = -1 - 9/16
7/8x = -16/16 - 9/16
7/8x = -25/16
x = (-25/16) / (7/8)
x = (-25/16) * (8/7)
x = -200/112
x = -25/14
Ответ: x = -25/14.