4x+5(2x-9)=81

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Solution for 4x+5(2x-9)=81 equation:


Simplifying
4x + 5(2x + -9) = 81

Reorder the terms:
4x + 5(-9 + 2x) = 81
4x + (-9 * 5 + 2x * 5) = 81
4x + (-45 + 10x) = 81

Reorder the terms:
-45 + 4x + 10x = 81

Combine like terms: 4x + 10x = 14x
-45 + 14x = 81

Solving
-45 + 14x = 81

Solving for variable 'x'.

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

Add '45' to each side of the equation.
-45 + 45 + 14x = 81 + 45

Combine like terms: -45 + 45 = 0
0 + 14x = 81 + 45
14x = 81 + 45

Combine like terms: 81 + 45 = 126
14x = 126

Divide each side by '14'.
x = 9

Simplifying
x = 9

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