X 9 4x 3 5x 8x. X1 + 2x2 + x3x4x5=4. 6x − 8 > 4x + 4. Решение 9y(9x-1/3). 4x+5x+4.7 16.4. 3x/5-x+1/2=1. X-4/7x=1, 2/5 решение. 4x+4/3x 2+2x-1. 2 2/9 X 7 1/5 + 11/12 X 7 1/5 - 7 1/5 Х 1 3/4. X2+25/x. 2/5x+5/9x. (X+4)^2=(X-5)^2. 4x 2-8x+3/4x 2-1. (3x-1)/x^2+7x-12 DX