(3x+7)(x+0.5)=(0.4x-10)(0.1x+6)

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Solution for (3x+7)(x+0.5)=(0.4x-10)(0.1x+6) equation:


Simplifying
(3x + 7)(x + 0.5) = (0.4x + -10)(0.1x + 6)

Reorder the terms:
(7 + 3x)(x + 0.5) = (0.4x + -10)(0.1x + 6)

Reorder the terms:
(7 + 3x)(0.5 + x) = (0.4x + -10)(0.1x + 6)

Multiply (7 + 3x) * (0.5 + x)
(7(0.5 + x) + 3x * (0.5 + x)) = (0.4x + -10)(0.1x + 6)
((0.5 * 7 + x * 7) + 3x * (0.5 + x)) = (0.4x + -10)(0.1x + 6)
((3.5 + 7x) + 3x * (0.5 + x)) = (0.4x + -10)(0.1x + 6)
(3.5 + 7x + (0.5 * 3x + x * 3x)) = (0.4x + -10)(0.1x + 6)
(3.5 + 7x + (1.5x + 3x2)) = (0.4x + -10)(0.1x + 6)

Combine like terms: 7x + 1.5x = 8.5x
(3.5 + 8.5x + 3x2) = (0.4x + -10)(0.1x + 6)

Reorder the terms:
3.5 + 8.5x + 3x2 = (-10 + 0.4x)(0.1x + 6)

Reorder the terms:
3.5 + 8.5x + 3x2 = (-10 + 0.4x)(6 + 0.1x)

Multiply (-10 + 0.4x) * (6 + 0.1x)
3.5 + 8.5x + 3x2 = (-10(6 + 0.1x) + 0.4x * (6 + 0.1x))
3.5 + 8.5x + 3x2 = ((6 * -10 + 0.1x * -10) + 0.4x * (6 + 0.1x))
3.5 + 8.5x + 3x2 = ((-60 + -1x) + 0.4x * (6 + 0.1x))
3.5 + 8.5x + 3x2 = (-60 + -1x + (6 * 0.4x + 0.1x * 0.4x))
3.5 + 8.5x + 3x2 = (-60 + -1x + (2.4x + 0.04x2))

Combine like terms: -1x + 2.4x = 1.4x
3.5 + 8.5x + 3x2 = (-60 + 1.4x + 0.04x2)

Solving
3.5 + 8.5x + 3x2 = -60 + 1.4x + 0.04x2

Solving for variable 'x'.

Reorder the terms:
3.5 + 60 + 8.5x + -1.4x + 3x2 + -0.04x2 = -60 + 1.4x + 0.04x2 + 60 + -1.4x + -0.04x2

Combine like terms: 3.5 + 60 = 63.5
63.5 + 8.5x + -1.4x + 3x2 + -0.04x2 = -60 + 1.4x + 0.04x2 + 60 + -1.4x + -0.04x2

Combine like terms: 8.5x + -1.4x = 7.1x
63.5 + 7.1x + 3x2 + -0.04x2 = -60 + 1.4x + 0.04x2 + 60 + -1.4x + -0.04x2

Combine like terms: 3x2 + -0.04x2 = 2.96x2
63.5 + 7.1x + 2.96x2 = -60 + 1.4x + 0.04x2 + 60 + -1.4x + -0.04x2

Reorder the terms:
63.5 + 7.1x + 2.96x2 = -60 + 60 + 1.4x + -1.4x + 0.04x2 + -0.04x2

Combine like terms: -60 + 60 = 0
63.5 + 7.1x + 2.96x2 = 0 + 1.4x + -1.4x + 0.04x2 + -0.04x2
63.5 + 7.1x + 2.96x2 = 1.4x + -1.4x + 0.04x2 + -0.04x2

Combine like terms: 1.4x + -1.4x = 0.0
63.5 + 7.1x + 2.96x2 = 0.0 + 0.04x2 + -0.04x2
63.5 + 7.1x + 2.96x2 = 0.04x2 + -0.04x2

Combine like terms: 0.04x2 + -0.04x2 = 0.00
63.5 + 7.1x + 2.96x2 = 0.00

Begin completing the square.  Divide all terms by
2.96 the coefficient of the squared term: 

Divide each side by '2.96'.
21.4527027 + 2.398648649x + x2 = 0

Move the constant term to the right:

Add '-21.4527027' to each side of the equation.
21.4527027 + 2.398648649x + -21.4527027 + x2 = 0 + -21.4527027

Reorder the terms:
21.4527027 + -21.4527027 + 2.398648649x + x2 = 0 + -21.4527027

Combine like terms: 21.4527027 + -21.4527027 = 0.0000000
0.0000000 + 2.398648649x + x2 = 0 + -21.4527027
2.398648649x + x2 = 0 + -21.4527027

Combine like terms: 0 + -21.4527027 = -21.4527027
2.398648649x + x2 = -21.4527027

The x term is 2.398648649x.  Take half its coefficient (1.199324325).
Square it (1.438378837) and add it to both sides.

Add '1.438378837' to each side of the equation.
2.398648649x + 1.438378837 + x2 = -21.4527027 + 1.438378837

Reorder the terms:
1.438378837 + 2.398648649x + x2 = -21.4527027 + 1.438378837

Combine like terms: -21.4527027 + 1.438378837 = -20.014323863
1.438378837 + 2.398648649x + x2 = -20.014323863

Factor a perfect square on the left side:
(x + 1.199324325)(x + 1.199324325) = -20.014323863

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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