1)4x+10.4x=13.6
2)12x=2.4
3) 6x-16=30
4)12x-4(8x-2)=14
5)0.4x-0.2(2x-6)=1.2
6)xквадрат=16
7)10xквадрат=20
8)2xквадрат-16=0

спс

огромное

1)4x+10.4x=13.614.4x=13.6x=13.6:14.413 6/10=13 3/5=68/514 4/10=14 2/5=72/5x=68/5×5/72=34/36=17/182)12x=2.4x=2.4:12x=0.23) 6x-16=306x=30+166x=46x=46:6x=7 4/6=7 2/34)12x-4(8x-2)=1412x-32x+8=14-20x=14-8-20x=6x=6:(-20)x= - 0.35)0.4x-0.2(2x-6)=1.20.4x-0.4x+1.2=1.21.2=1.26)xквадрат=16x^2=16x=√16x=47)10xквадрат=2010x^2=20x^2=20:10x^2=2x=√28)2xквадрат-16=02x^2-16=02x^2=16x^2=16:2x^2=8x= √8