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The equation is
Subtractiuon property of equality: If then :
Subtract 4 from both sides
(Additive inverse property: )
(Additive inverse property: )
(Subtract: )
(Divide both sides by 3)
(cancel common terms)
(Divide: )
Check:
To check the solution, substitute in original equation.
(Substitute )
(Multiply: )
(Add: )
Compare the values, the equation is true. The solution is .
The value of .
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