7.2x+9=5.2x-8

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Solution for 7.2x+9=5.2x-8 equation:


Simplifying
7.2x + 9 = 5.2x + -8

Reorder the terms:
9 + 7.2x = 5.2x + -8

Reorder the terms:
9 + 7.2x = -8 + 5.2x

Solving
9 + 7.2x = -8 + 5.2x

Solving for variable 'x'.

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

Add '-5.2x' to each side of the equation.
9 + 7.2x + -5.2x = -8 + 5.2x + -5.2x

Combine like terms: 7.2x + -5.2x = 2x
9 + 2x = -8 + 5.2x + -5.2x

Combine like terms: 5.2x + -5.2x = 0.0
9 + 2x = -8 + 0.0
9 + 2x = -8

Add '-9' to each side of the equation.
9 + -9 + 2x = -8 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = -8 + -9
2x = -8 + -9

Combine like terms: -8 + -9 = -17
2x = -17

Divide each side by '2'.
x = -8.5

Simplifying
x = -8.5

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