7x-9=4.5x+8.5

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Solution for 7x-9=4.5x+8.5 equation:


Simplifying
7x + -9 = 4.5x + 8.5

Reorder the terms:
-9 + 7x = 4.5x + 8.5

Reorder the terms:
-9 + 7x = 8.5 + 4.5x

Solving
-9 + 7x = 8.5 + 4.5x

Solving for variable 'x'.

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

Add '-4.5x' to each side of the equation.
-9 + 7x + -4.5x = 8.5 + 4.5x + -4.5x

Combine like terms: 7x + -4.5x = 2.5x
-9 + 2.5x = 8.5 + 4.5x + -4.5x

Combine like terms: 4.5x + -4.5x = 0.0
-9 + 2.5x = 8.5 + 0.0
-9 + 2.5x = 8.5

Add '9' to each side of the equation.
-9 + 9 + 2.5x = 8.5 + 9

Combine like terms: -9 + 9 = 0
0 + 2.5x = 8.5 + 9
2.5x = 8.5 + 9

Combine like terms: 8.5 + 9 = 17.5
2.5x = 17.5

Divide each side by '2.5'.
x = 7

Simplifying
x = 7

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