1.8=-.4x

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Solution for 1.8=-.4x equation:


Simplifying
1.8 = -0.4x

Solving
1.8 = -0.4x

Solving for variable 'x'.

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

Add '0.4x' to each side of the equation.
1.8 + 0.4x = -0.4x + 0.4x

Combine like terms: -0.4x + 0.4x = 0.0
1.8 + 0.4x = 0.0

Add '-1.8' to each side of the equation.
1.8 + -1.8 + 0.4x = 0.0 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + 0.4x = 0.0 + -1.8
0.4x = 0.0 + -1.8

Combine like terms: 0.0 + -1.8 = -1.8
0.4x = -1.8

Divide each side by '0.4'.
x = -4.5

Simplifying
x = -4.5

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