\[7x+10=7\]

1
Subtract 1010 from both sides.
7x=7107x=7-10

2
Simplify  7107-10  to  3-3.
7x=37x=-3

3
Divide both sides by 77.
x=37x=-\frac{3}{7}

Done

Decimal Form: -0.428571

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