3x + 4 = 46 Do/Undo (inverse operations)?

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3x + 4 = 46 Do/Undo (inverse operations)?

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Answer 1 · 2018-05-02T15:20:21

$x=14$

Explanation:

$3x+4=46$ Subtract $4$ from both sides:
$3x+4-4=46-4$ Combine like terms:
$3x=42$ Divide both sides by $3$ :
$(3x)/3=42/3$ Simplify:
$x=14$ Now working backwards; multiply both sides by $3$ :
$(3)x=(3)14$ Simplify:
$3x=42$ Add $4$ to both sides:
$3x+4=42+4$ Combine like terms:
$3x+4=46$

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3x + 4 = 46 Do/Undo (inverse operations)?

1 Answer

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