0.4x(5x-6)+7.2=2x(x+0.6)

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Solution for 0.4x(5x-6)+7.2=2x(x+0.6) equation:


Simplifying
0.4x(5x + -6) + 7.2 = 2x(x + 0.6)

Reorder the terms:
0.4x(-6 + 5x) + 7.2 = 2x(x + 0.6)
(-6 * 0.4x + 5x * 0.4x) + 7.2 = 2x(x + 0.6)
(-2.4x + 2x2) + 7.2 = 2x(x + 0.6)

Reorder the terms:
7.2 + -2.4x + 2x2 = 2x(x + 0.6)

Reorder the terms:
7.2 + -2.4x + 2x2 = 2x(0.6 + x)
7.2 + -2.4x + 2x2 = (0.6 * 2x + x * 2x)
7.2 + -2.4x + 2x2 = (1.2x + 2x2)

Add '-2x2' to each side of the equation.
7.2 + -2.4x + 2x2 + -2x2 = 1.2x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
7.2 + -2.4x + 0 = 1.2x + 2x2 + -2x2
7.2 + -2.4x = 1.2x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
7.2 + -2.4x = 1.2x + 0
7.2 + -2.4x = 1.2x

Solving
7.2 + -2.4x = 1.2x

Solving for variable 'x'.

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

Add '-1.2x' to each side of the equation.
7.2 + -2.4x + -1.2x = 1.2x + -1.2x

Combine like terms: -2.4x + -1.2x = -3.6x
7.2 + -3.6x = 1.2x + -1.2x

Combine like terms: 1.2x + -1.2x = 0.0
7.2 + -3.6x = 0.0

Add '-7.2' to each side of the equation.
7.2 + -7.2 + -3.6x = 0.0 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + -3.6x = 0.0 + -7.2
-3.6x = 0.0 + -7.2

Combine like terms: 0.0 + -7.2 = -7.2
-3.6x = -7.2

Divide each side by '-3.6'.
x = 2

Simplifying
x = 2

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