0.6x+2.8x=12.8+1.8x

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0.6x+2.8x=12.8+1.8x0.6x+2.8x=12.8+1.8x0.6x+2.8x=12.8+1.8x0.6x+2.8x=12.8+1.8x3.4x=12.8+1.8x3.4x-1.8x=

0.6x+2.8x=12.8+1.8x
0.6x+2.8x=12.8+1.8x

0.6x+2.8x=12.8+1.8x
0.6x+2.8x=12.8+1.8x


3.4x=12.8+1.8x


3.4x-1.8x=12.8


1.6x=12.8


x=8