8.4[7x-4]+3.9=

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Solution for 8.4[7x-4]+3.9= equation:


Simplifying
8.4[7x + -4] + 3.9 = 0

Reorder the terms:
8.4[-4 + 7x] + 3.9 = 0
[-4 * 8.4 + 7x * 8.4] + 3.9 = 0
[-33.6 + 58.8x] + 3.9 = 0

Reorder the terms:
-33.6 + 3.9 + 58.8x = 0

Combine like terms: -33.6 + 3.9 = -29.7
-29.7 + 58.8x = 0

Solving
-29.7 + 58.8x = 0

Solving for variable 'x'.

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

Add '29.7' to each side of the equation.
-29.7 + 29.7 + 58.8x = 0 + 29.7

Combine like terms: -29.7 + 29.7 = 0.0
0.0 + 58.8x = 0 + 29.7
58.8x = 0 + 29.7

Combine like terms: 0 + 29.7 = 29.7
58.8x = 29.7

Divide each side by '58.8'.
x = 0.5051020408

Simplifying
x = 0.5051020408

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