0.8(1+0.5x)=-4

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Solution for 0.8(1+0.5x)=-4 equation: 


Simplifying
0.8(1 + 0.5x) = -4
(1 * 0.8 + 0.5x * 0.8) = -4
(0.8 + 0.4x) = -4

Solving
0.8 + 0.4x = -4

Solving for variable 'x'.

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

Add '-0.8' to each side of the equation.
0.8 + -0.8 + 0.4x = -4 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + 0.4x = -4 + -0.8
0.4x = -4 + -0.8

Combine like terms: -4 + -0.8 = -4.8
0.4x = -4.8

Divide each side by '0.4'.
x = -12

Simplifying
x = -12

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