1) 3(х-8)=7(х+2) 2) -1,4(х-6)=7(4х+1,2)

3(х-8)=7(х+2) 3х-24=7х+14 3х-7х=14+24 -4х=38 х= -38:4 9,5 -1,4(х-6)=7(4х+1,2) -1,4х+8,4=7х+8,4 -1,4х-7х=8,4-8,4 -8,4х=0 х=0