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7+3x=4 (0.75x+7)
We simplify the equation to the form, which is simple to understand
7+3x=4(0.75x+7)
Reorder the terms in parentheses
7+3x=+(+3x+28)
Remove unnecessary parentheses
+7+3x=+3x+28
We move all terms containing x to the left and all other terms to the right.
+3x-3x=+28-7
We simplify left and right side of the equation.
0x=+21
0=21
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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