0.4x+15=0.3x+9

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Solution for 0.4x+15=0.3x+9 equation: 


Simplifying
0.4x + 15 = 0.3x + 9

Reorder the terms:
15 + 0.4x = 0.3x + 9

Reorder the terms:
15 + 0.4x = 9 + 0.3x

Solving
15 + 0.4x = 9 + 0.3x

Solving for variable 'x'.

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

Add '-0.3x' to each side of the equation.
15 + 0.4x + -0.3x = 9 + 0.3x + -0.3x

Combine like terms: 0.4x + -0.3x = 0.1x
15 + 0.1x = 9 + 0.3x + -0.3x

Combine like terms: 0.3x + -0.3x = 0.0
15 + 0.1x = 9 + 0.0
15 + 0.1x = 9

Add '-15' to each side of the equation.
15 + -15 + 0.1x = 9 + -15

Combine like terms: 15 + -15 = 0
0 + 0.1x = 9 + -15
0.1x = 9 + -15

Combine like terms: 9 + -15 = -6
0.1x = -6

Divide each side by '0.1'.
x = -60

Simplifying
x = -60

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