0.8x-9=3x+13

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Solution for 0.8x-9=3x+13 equation:


Simplifying
0.8x + -9 = 3x + 13

Reorder the terms:
-9 + 0.8x = 3x + 13

Reorder the terms:
-9 + 0.8x = 13 + 3x

Solving
-9 + 0.8x = 13 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-9 + 0.8x + -3x = 13 + 3x + -3x

Combine like terms: 0.8x + -3x = -2.2x
-9 + -2.2x = 13 + 3x + -3x

Combine like terms: 3x + -3x = 0
-9 + -2.2x = 13 + 0
-9 + -2.2x = 13

Add '9' to each side of the equation.
-9 + 9 + -2.2x = 13 + 9

Combine like terms: -9 + 9 = 0
0 + -2.2x = 13 + 9
-2.2x = 13 + 9

Combine like terms: 13 + 9 = 22
-2.2x = 22

Divide each side by '-2.2'.
x = -10

Simplifying
x = -10

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