5x+9=78-2x

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Solution for 5x+9=78-2x equation:


Simplifying
5x + 9 = 78 + -2x

Reorder the terms:
9 + 5x = 78 + -2x

Solving
9 + 5x = 78 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
9 + 5x + 2x = 78 + -2x + 2x

Combine like terms: 5x + 2x = 7x
9 + 7x = 78 + -2x + 2x

Combine like terms: -2x + 2x = 0
9 + 7x = 78 + 0
9 + 7x = 78

Add '-9' to each side of the equation.
9 + -9 + 7x = 78 + -9

Combine like terms: 9 + -9 = 0
0 + 7x = 78 + -9
7x = 78 + -9

Combine like terms: 78 + -9 = 69
7x = 69

Divide each side by '7'.
x = 9.857142857

Simplifying
x = 9.857142857

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