1=0.3x-0.4x-3

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Solution for 1=0.3x-0.4x-3 equation: 


Simplifying
1 = 0.3x + -0.4x + -3

Reorder the terms:
1 = -3 + 0.3x + -0.4x

Combine like terms: 0.3x + -0.4x = -0.1x
1 = -3 + -0.1x

Solving
1 = -3 + -0.1x

Solving for variable 'x'.

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

Add '0.1x' to each side of the equation.
1 + 0.1x = -3 + -0.1x + 0.1x

Combine like terms: -0.1x + 0.1x = 0.0
1 + 0.1x = -3 + 0.0
1 + 0.1x = -3

Add '-1' to each side of the equation.
1 + -1 + 0.1x = -3 + -1

Combine like terms: 1 + -1 = 0
0 + 0.1x = -3 + -1
0.1x = -3 + -1

Combine like terms: -3 + -1 = -4
0.1x = -4

Divide each side by '0.1'.
x = -40

Simplifying
x = -40

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