The answer is: x = 25 .
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4x = 2x + 50 ;
Subtract "2x" from each side of the equation;
4x - 2x = 2x + 50 - 2x ; to get:
2x = 50 ;
Divide EACH SIDE of the equation by "2" ; to isolate "x" on one side of the equation; and to solve for "x" ;
2x / 2 = 50 / 2 ;
x = 25 .
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