64=-20-7x

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Solution for 64=-20-7x equation:


Simplifying
64 = -20 + -7x

Solving
64 = -20 + -7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '7x' to each side of the equation.
64 + 7x = -20 + -7x + 7x

Combine like terms: -7x + 7x = 0
64 + 7x = -20 + 0
64 + 7x = -20

Add '-64' to each side of the equation.
64 + -64 + 7x = -20 + -64

Combine like terms: 64 + -64 = 0
0 + 7x = -20 + -64
7x = -20 + -64

Combine like terms: -20 + -64 = -84
7x = -84

Divide each side by '7'.
x = -12

Simplifying
x = -12

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