21x-9(6x+1)=45

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Solution for 21x-9(6x+1)=45 equation:


Simplifying
21x + -9(6x + 1) = 45

Reorder the terms:
21x + -9(1 + 6x) = 45
21x + (1 * -9 + 6x * -9) = 45
21x + (-9 + -54x) = 45

Reorder the terms:
-9 + 21x + -54x = 45

Combine like terms: 21x + -54x = -33x
-9 + -33x = 45

Solving
-9 + -33x = 45

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 + -33x = 45 + 9

Combine like terms: -9 + 9 = 0
0 + -33x = 45 + 9
-33x = 45 + 9

Combine like terms: 45 + 9 = 54
-33x = 54

Divide each side by '-33'.
x = -1.636363636

Simplifying
x = -1.636363636

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