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x*1.4-x=3
We move all terms to the left:
x*1.4-x-(3)=0
We add all the numbers together, and all the variables
-1x+x*1.4-3=0
Wy multiply elements
-1x+1.4x-3=0
We add all the numbers together, and all the variables
0.4x-3=0
We move all terms containing x to the left, all other terms to the right
0.4x=3
x=3/0.4
x=7+0.2/0.4
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