d: \(\Leftrightarrow28\left(5x-1\right)+28\left(7x-1.1\right)-12\left(1.5-5x\right)=21\left(9x-0.7\right)\)
=>140x-28+196x-30.8-18+60x=189x-14,7
=>396x-76,8-189x+14,7=0
=>207x=62,1
hay x=0,3
e: =>6(x-4)+3(3x-2)=10(2x-5)-5(x+2)
=>6x-24+9x-6=20x-50-5x-10
=>15x-30=15x-60
=>0x=-30(loại)


