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.3-4.2=2.7
We simplify the equation to the form, which is simple to understand
.3-4.2=2.7
We move all terms containing to the left and all other terms to the right.
0=+2.7-0.3+4.2
We simplify left and right side of the equation.
0=+6.6
0=6.6
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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