4x+2(3.2x-5+2.8)=68.4

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Solution for 4x+2(3.2x-5+2.8)=68.4 equation: 


Simplifying
4x + 2(3.2x + -5 + 2.8) = 68.4

Reorder the terms:
4x + 2(-5 + 2.8 + 3.2x) = 68.4

Combine like terms: -5 + 2.8 = -2.2
4x + 2(-2.2 + 3.2x) = 68.4
4x + (-2.2 * 2 + 3.2x * 2) = 68.4
4x + (-4.4 + 6.4x) = 68.4

Reorder the terms:
-4.4 + 4x + 6.4x = 68.4

Combine like terms: 4x + 6.4x = 10.4x
-4.4 + 10.4x = 68.4

Solving
-4.4 + 10.4x = 68.4

Solving for variable 'x'.

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

Add '4.4' to each side of the equation.
-4.4 + 4.4 + 10.4x = 68.4 + 4.4

Combine like terms: -4.4 + 4.4 = 0.0
0.0 + 10.4x = 68.4 + 4.4
10.4x = 68.4 + 4.4

Combine like terms: 68.4 + 4.4 = 72.8
10.4x = 72.8

Divide each side by '10.4'.
x = 7

Simplifying
x = 7

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