решите уравнение: 1.1-2 2\1=5\3x; 6.75x=2 4\1x-9; 16-9 2\1y=3y+21; 1 4\1y+7.5=5y; 0.5x-7=-3\2x; 6y-2 5\4=2.5y.

4(1-х) = 3(2х+3)4-4х = 6х+9-4х-6х=9-4-10х=5\(-10)х= -0,512х-(7-3х)=4х12х - 7 + 3х = 4х12х + 3х - 4х = 711х = 7\11х= 7\118х + 3 = 1-(2х+4)8х+3=1-2х-48х+2х=-4+1-310х=-9х= -0,9