400=-80x

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Solution for 400=-80x equation:


Simplifying
400 = -80x

Solving
400 = -80x

Solving for variable 'x'.

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

Add '80x' to each side of the equation.
400 + 80x = -80x + 80x

Combine like terms: -80x + 80x = 0
400 + 80x = 0

Add '-400' to each side of the equation.
400 + -400 + 80x = 0 + -400

Combine like terms: 400 + -400 = 0
0 + 80x = 0 + -400
80x = 0 + -400

Combine like terms: 0 + -400 = -400
80x = -400

Divide each side by '80'.
x = -5

Simplifying
x = -5

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