4x+9=81-4

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Solution for 4x+9=81-4 equation: 


Simplifying
4x + 9 = 81 + -4

Reorder the terms:
9 + 4x = 81 + -4

Combine like terms: 81 + -4 = 77
9 + 4x = 77

Solving
9 + 4x = 77

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 4x = 77 + -9

Combine like terms: 9 + -9 = 0
0 + 4x = 77 + -9
4x = 77 + -9

Combine like terms: 77 + -9 = 68
4x = 68

Divide each side by '4'.
x = 17

Simplifying
x = 17

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