The property that justifies the statement "If 4x + 6 = 20, then 4x = 14" is the subtraction property of equality. ;
The statement is justified by the subtraction property of equality, which allows the same amount to be subtracted from both sides of an equation. By subtracting 6 from both sides of 4 x + 6 = 20 , we isolate 4 x to find 4 x = 14 . This property is essential for solving equations in algebra.
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