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0.4(x-0.45)=9.
We move all terms to the left:
0.4(x-0.45)-(9.)=0
We add all the numbers together, and all the variables
0.4(x-0.45)-9=0
We multiply parentheses
0.4x-0.18-9=0
We add all the numbers together, and all the variables
0.4x-9.18=0
We move all terms containing x to the left, all other terms to the right
0.4x=9.18
x=9.18/0.4
x=22+0.38/0.4
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