5x-(7+8+4x)=56
4x+(15-3x)+12=10
(21+x)-34=11
19+(13-7x+8x)=59
4x-(12-25+3x)=87
12-2x+3x-7=29 решите уравнение 5 кл

1. 5х-(7+8+4х) = 565х-7-8-4х = 56х-15 = 56х = 712. 4х+(15-3х)+12=104х+15-3х+12=10х+27=10х=-173.(21+х)-34=1121+х-34=11х-13=11х=244. 19+(13-7х+8х)=5919+13-7х+8х=5932+х=59х=275. 4х-(12-25+3х)=874х-12+25-3х=87х-13=87х=746. 12-2х+3х-7=295+х=29х=24