ХЕЛП!!! X*0,7=(-5,11) -0,312:k=2,6 -5/9*=1 13/27 -2 2/9:a=11 2/3:(-1 2/5)
Х=-5.11÷0.7 х=-7.3 k=2.6*(-0.312) k=-0.8112 x=(-5)*27÷(113*9) x=0.01