0.4x-0.7x-9=15

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Solution for 0.4x-0.7x-9=15 equation:


Simplifying
0.4x + -0.7x + -9 = 15

Reorder the terms:
-9 + 0.4x + -0.7x = 15

Combine like terms: 0.4x + -0.7x = -0.3x
-9 + -0.3x = 15

Solving
-9 + -0.3x = 15

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -0.3x = 15 + 9

Combine like terms: -9 + 9 = 0
0 + -0.3x = 15 + 9
-0.3x = 15 + 9

Combine like terms: 15 + 9 = 24
-0.3x = 24

Divide each side by '-0.3'.
x = -80

Simplifying
x = -80

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