-1=-0.4(x-2.5)

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Solution for -1=-0.4(x-2.5) equation:


Simplifying
-1 = -0.4(x + -2.5)

Reorder the terms:
-1 = -0.4(-2.5 + x)
-1 = (-2.5 * -0.4 + x * -0.4)
-1 = (1 + -0.4x)

Solving
-1 = 1 + -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 + 0.4x = 1 + -0.4x + 0.4x

Combine like terms: -0.4x + 0.4x = 0.0
-1 + 0.4x = 1 + 0.0
-1 + 0.4x = 1

Add '1' to each side of the equation.
-1 + 1 + 0.4x = 1 + 1

Combine like terms: -1 + 1 = 0
0 + 0.4x = 1 + 1
0.4x = 1 + 1

Combine like terms: 1 + 1 = 2
0.4x = 2

Divide each side by '0.4'.
x = 5

Simplifying
x = 5

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