方程5x-2=4(x-1)变形为5x-2=4x-4的依据是_.

问题描述:

方程5x-2=4(x-1)变形为5x-2=4x-4的依据是______.

∵程5x-2=4(x-1)去括号后变为5x-2=4x-4,
∴方程5x-2=4(x-1)变形为5x-2=4x-4的依据是去括号法则.