0.4(4x-1)+0.25(5x-2)=-1

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Solution for 0.4(4x-1)+0.25(5x-2)=-1 equation:


Simplifying
0.4(4x + -1) + 0.25(5x + -2) = -1

Reorder the terms:
0.4(-1 + 4x) + 0.25(5x + -2) = -1
(-1 * 0.4 + 4x * 0.4) + 0.25(5x + -2) = -1
(-0.4 + 1.6x) + 0.25(5x + -2) = -1

Reorder the terms:
-0.4 + 1.6x + 0.25(-2 + 5x) = -1
-0.4 + 1.6x + (-2 * 0.25 + 5x * 0.25) = -1
-0.4 + 1.6x + (-0.5 + 1.25x) = -1

Reorder the terms:
-0.4 + -0.5 + 1.6x + 1.25x = -1

Combine like terms: -0.4 + -0.5 = -0.9
-0.9 + 1.6x + 1.25x = -1

Combine like terms: 1.6x + 1.25x = 2.85x
-0.9 + 2.85x = -1

Solving
-0.9 + 2.85x = -1

Solving for variable 'x'.

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

Add '0.9' to each side of the equation.
-0.9 + 0.9 + 2.85x = -1 + 0.9

Combine like terms: -0.9 + 0.9 = 0.0
0.0 + 2.85x = -1 + 0.9
2.85x = -1 + 0.9

Combine like terms: -1 + 0.9 = -0.1
2.85x = -0.1

Divide each side by '2.85'.
x = -0.0350877193

Simplifying
x = -0.0350877193

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