51=7x+7x+9

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Solution for 51=7x+7x+9 equation:


Simplifying
51 = 7x + 7x + 9

Reorder the terms:
51 = 9 + 7x + 7x

Combine like terms: 7x + 7x = 14x
51 = 9 + 14x

Solving
51 = 9 + 14x

Solving for variable 'x'.

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

Add '-14x' to each side of the equation.
51 + -14x = 9 + 14x + -14x

Combine like terms: 14x + -14x = 0
51 + -14x = 9 + 0
51 + -14x = 9

Add '-51' to each side of the equation.
51 + -51 + -14x = 9 + -51

Combine like terms: 51 + -51 = 0
0 + -14x = 9 + -51
-14x = 9 + -51

Combine like terms: 9 + -51 = -42
-14x = -42

Divide each side by '-14'.
x = 3

Simplifying
x = 3

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