3x-.2(5-X)=6.9

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Solution for 3x-.2(5-X)=6.9 equation:


Simplifying
3x + -0.2(5 + -1X) = 6.9
3x + (5 * -0.2 + -1X * -0.2) = 6.9
3x + (-1 + 0.2X) = 6.9

Reorder the terms:
-1 + 0.2X + 3x = 6.9

Solving
-1 + 0.2X + 3x = 6.9

Solving for variable 'X'.

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

Add '1' to each side of the equation.
-1 + 0.2X + 1 + 3x = 6.9 + 1

Reorder the terms:
-1 + 1 + 0.2X + 3x = 6.9 + 1

Combine like terms: -1 + 1 = 0
0 + 0.2X + 3x = 6.9 + 1
0.2X + 3x = 6.9 + 1

Combine like terms: 6.9 + 1 = 7.9
0.2X + 3x = 7.9

Add '-3x' to each side of the equation.
0.2X + 3x + -3x = 7.9 + -3x

Combine like terms: 3x + -3x = 0
0.2X + 0 = 7.9 + -3x
0.2X = 7.9 + -3x

Divide each side by '0.2'.
X = 39.5 + -15x

Simplifying
X = 39.5 + -15x

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