0.3(2x+7)+10.4=0.7(2x-5)

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Solution for 0.3(2x+7)+10.4=0.7(2x-5) equation:


Simplifying
0.3(2x + 7) + 10.4 = 0.7(2x + -5)

Reorder the terms:
0.3(7 + 2x) + 10.4 = 0.7(2x + -5)
(7 * 0.3 + 2x * 0.3) + 10.4 = 0.7(2x + -5)
(2.1 + 0.6x) + 10.4 = 0.7(2x + -5)

Reorder the terms:
2.1 + 10.4 + 0.6x = 0.7(2x + -5)

Combine like terms: 2.1 + 10.4 = 12.5
12.5 + 0.6x = 0.7(2x + -5)

Reorder the terms:
12.5 + 0.6x = 0.7(-5 + 2x)
12.5 + 0.6x = (-5 * 0.7 + 2x * 0.7)
12.5 + 0.6x = (-3.5 + 1.4x)

Solving
12.5 + 0.6x = -3.5 + 1.4x

Solving for variable 'x'.

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

Add '-1.4x' to each side of the equation.
12.5 + 0.6x + -1.4x = -3.5 + 1.4x + -1.4x

Combine like terms: 0.6x + -1.4x = -0.8x
12.5 + -0.8x = -3.5 + 1.4x + -1.4x

Combine like terms: 1.4x + -1.4x = 0.0
12.5 + -0.8x = -3.5 + 0.0
12.5 + -0.8x = -3.5

Add '-12.5' to each side of the equation.
12.5 + -12.5 + -0.8x = -3.5 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + -0.8x = -3.5 + -12.5
-0.8x = -3.5 + -12.5

Combine like terms: -3.5 + -12.5 = -16
-0.8x = -16

Divide each side by '-0.8'.
x = 20

Simplifying
x = 20

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