
The equation is
.
(Add 1 to each side.)
(Add:
)
(Apply Additive inverse property:
)
(Apply Additive identity property:
)
(Subtract 5x to each side)
(Apply Commutative property:
)
(Apply Additive inverse property:
)
(Divide each side by neative 2)
(Cancel common factors)

The value of 
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