3x+45=9x-15

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Solution for 3x+45=9x-15 equation:


Simplifying
3x + 45 = 9x + -15

Reorder the terms:
45 + 3x = 9x + -15

Reorder the terms:
45 + 3x = -15 + 9x

Solving
45 + 3x = -15 + 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 + 3x + -9x = -15 + 9x + -9x

Combine like terms: 3x + -9x = -6x
45 + -6x = -15 + 9x + -9x

Combine like terms: 9x + -9x = 0
45 + -6x = -15 + 0
45 + -6x = -15

Add '-45' to each side of the equation.
45 + -45 + -6x = -15 + -45

Combine like terms: 45 + -45 = 0
0 + -6x = -15 + -45
-6x = -15 + -45

Combine like terms: -15 + -45 = -60
-6x = -60

Divide each side by '-6'.
x = 10

Simplifying
x = 10

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