45=6x+3x+9

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Solution for 45=6x+3x+9 equation:


Simplifying
45 = 6x + 3x + 9

Reorder the terms:
45 = 9 + 6x + 3x

Combine like terms: 6x + 3x = 9x
45 = 9 + 9x

Solving
45 = 9 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
45 + -9x = 9 + 9x + -9x

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

Add '-45' to each side of the equation.
45 + -45 + -9x = 9 + -45

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

Combine like terms: 9 + -45 = -36
-9x = -36

Divide each side by '-9'.
x = 4

Simplifying
x = 4

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