.40(9)+x=.60(x+4)

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Solution for .40(9)+x=.60(x+4) equation:


Simplifying
0.40(9) + x = 0.60(x + 4)

Multiply 0.40 * 9
3.6 + x = 0.60(x + 4)

Reorder the terms:
3.6 + x = 0.60(4 + x)
3.6 + x = (4 * 0.60 + x * 0.60)
3.6 + x = (2.4 + 0.60x)

Solving
3.6 + x = 2.4 + 0.60x

Solving for variable 'x'.

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

Add '-0.60x' to each side of the equation.
3.6 + x + -0.60x = 2.4 + 0.60x + -0.60x

Combine like terms: x + -0.60x = 0.4x
3.6 + 0.4x = 2.4 + 0.60x + -0.60x

Combine like terms: 0.60x + -0.60x = 0.00
3.6 + 0.4x = 2.4 + 0.00
3.6 + 0.4x = 2.4

Add '-3.6' to each side of the equation.
3.6 + -3.6 + 0.4x = 2.4 + -3.6

Combine like terms: 3.6 + -3.6 = 0.0
0.0 + 0.4x = 2.4 + -3.6
0.4x = 2.4 + -3.6

Combine like terms: 2.4 + -3.6 = -1.2
0.4x = -1.2

Divide each side by '0.4'.
x = -3

Simplifying
x = -3

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