2,4x+1,5x=5,07
1,7x+1,8+2,2=4,34
помогите плиз

1) 2,4х+1,5х=5,07 3,9х=5,07х=5,07:3,9х=1,32)1,7х+1,8+2,2=4,341,7х+4=4,341,7х=4,34-41,7х=0,34х=0,34:1,7х=0,2