.4x-.7x-20=1

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Solution for .4x-.7x-20=1 equation:


Simplifying
0.4x + -0.7x + -20 = 1

Reorder the terms:
-20 + 0.4x + -0.7x = 1

Combine like terms: 0.4x + -0.7x = -0.3x
-20 + -0.3x = 1

Solving
-20 + -0.3x = 1

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + -0.3x = 1 + 20

Combine like terms: -20 + 20 = 0
0 + -0.3x = 1 + 20
-0.3x = 1 + 20

Combine like terms: 1 + 20 = 21
-0.3x = 21

Divide each side by '-0.3'.
x = -70

Simplifying
x = -70

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