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The equation is .
(Distribute 4)
(Multiply: )
Apply subtraction property of equality: Subtract 4 from each side.
(Apply additive inverse property: )
(Apply additive identity property: )
(Subtract: )
Apply division property of equality: if a = b then
(Divide each side by 4)
(Cancel common terms)
(Divide: )
Check:
To substitute in .
(Substitute x = 6)
(Add: 6 + 1 = 7)
(Multiply: )
The equality is true.
The solution is .
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