3(x-4)-4=5x+6.9-x

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Solution for 3(x-4)-4=5x+6.9-x equation:


Simplifying
3(x + -4) + -4 = 5x + 6.9 + -1x

Reorder the terms:
3(-4 + x) + -4 = 5x + 6.9 + -1x
(-4 * 3 + x * 3) + -4 = 5x + 6.9 + -1x
(-12 + 3x) + -4 = 5x + 6.9 + -1x

Reorder the terms:
-12 + -4 + 3x = 5x + 6.9 + -1x

Combine like terms: -12 + -4 = -16
-16 + 3x = 5x + 6.9 + -1x

Reorder the terms:
-16 + 3x = 6.9 + 5x + -1x

Combine like terms: 5x + -1x = 4x
-16 + 3x = 6.9 + 4x

Solving
-16 + 3x = 6.9 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-16 + 3x + -4x = 6.9 + 4x + -4x

Combine like terms: 3x + -4x = -1x
-16 + -1x = 6.9 + 4x + -4x

Combine like terms: 4x + -4x = 0
-16 + -1x = 6.9 + 0
-16 + -1x = 6.9

Add '16' to each side of the equation.
-16 + 16 + -1x = 6.9 + 16

Combine like terms: -16 + 16 = 0
0 + -1x = 6.9 + 16
-1x = 6.9 + 16

Combine like terms: 6.9 + 16 = 22.9
-1x = 22.9

Divide each side by '-1'.
x = -22.9

Simplifying
x = -22.9

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