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x*2.8=12.04
We move all terms to the left:
x*2.8-(12.04)=0
We add all the numbers together, and all the variables
x*2.8-12.04=0
Wy multiply elements
2.8x-12.04=0
We move all terms containing x to the left, all other terms to the right
2.8x=12.04
x=12.04/2.8
x=4+0.84/2.8
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