12.8-2.4X=4(X+2)
问题描述：
12.8-2.4X=4(X+2)
18-2(3-4X)=10X
答
12.8-2.4X=4(X+2)
12.8-8=4x+2.4x
4.8=6.4x
x=4.8÷6.4
x=0.75
18-2(3-4X)=10X
18-6+8x=10x
12=2x
x=12÷2
x=6