))))))))))))))))))))))))))
(16x - 170) + 2(7x - 165) = 85x + 1400 - (56x - 58)
16x - 170 + 14x - 330 = 85x + 1400 - 56x + 58
30x - 85x + 56x = 500 + 1400 + 58
x = 1958
16*1958 - 170 + 2(7*1958 - 165) = 85*1958 + 1400 - (56*1958 - 58)
31328 - 170 + 2(13706 - 165) = 166430 + 1400 - (109648 - 58)
31158 + 27082 = 167830 - 109590
58240 = 58240
Ответ: {1958}
Sinx*tgx - tgx -(sinx - 1) = 0
tgx(sinx - 1) - (sinx - 1) = 0
(tgx - 1)(sinx - 1) = 0
tgx - 1 = 0 sinx - 1 = 0
tgx = 1 sinx= 1
x =
x =