7x+45=3x+9

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Solution for 7x+45=3x+9 equation:


Simplifying
7x + 45 = 3x + 9

Reorder the terms:
45 + 7x = 3x + 9

Reorder the terms:
45 + 7x = 9 + 3x

Solving
45 + 7x = 9 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
45 + 7x + -3x = 9 + 3x + -3x

Combine like terms: 7x + -3x = 4x
45 + 4x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
45 + 4x = 9 + 0
45 + 4x = 9

Add '-45' to each side of the equation.
45 + -45 + 4x = 9 + -45

Combine like terms: 45 + -45 = 0
0 + 4x = 9 + -45
4x = 9 + -45

Combine like terms: 9 + -45 = -36
4x = -36

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

Simplifying
x = -9

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