6.4x-1.2=4x+2.4

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6.4x-1.2=4x+2.46.4x-1.2=4x+2.46.4x-1.2=4x+2.46.4x-1.2=4x+2.46.4x-4x=2.4+1.22.4x=3.6x=1.52.4x=3.6x=1.

6.4x-1.2=4x+2.4
6.4x-1.2=4x+2.4

6.4x-1.2=4x+2.4
6.4x-1.2=4x+2.4
6.4x-4x=2.4+1.2
2.4x=3.6
x=1.5

2.4x=3.6
x=1.5