решите уравнение 5(6x -7) - 4(7x -3)= 9x + 26

5( 6х - 7 ) - 4( 7x - 3 ) = 9x + 26 30x - 35 - 28x + 12 = 9x + 26 2x - 23 = 9x + 26 9x - 2x = - 23 - 26 7x = - 49 x = - 7