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5.4x+2.3-2.1x=4.8-3
We move all terms to the left:
5.4x+2.3-2.1x-(4.8-3)=0
We add all the numbers together, and all the variables
5.4x-2.1x+2.3-(1.8)=0
We add all the numbers together, and all the variables
3.3x+0.5=0
We move all terms containing x to the left, all other terms to the right
3.3x=-0.5
x=-0.5/3.3
x=-0.5/3.3
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