7x+63=3x-9

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Solution for 7x+63=3x-9 equation:


Simplifying
7x + 63 = 3x + -9

Reorder the terms:
63 + 7x = 3x + -9

Reorder the terms:
63 + 7x = -9 + 3x

Solving
63 + 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.
63 + 7x + -3x = -9 + 3x + -3x

Combine like terms: 7x + -3x = 4x
63 + 4x = -9 + 3x + -3x

Combine like terms: 3x + -3x = 0
63 + 4x = -9 + 0
63 + 4x = -9

Add '-63' to each side of the equation.
63 + -63 + 4x = -9 + -63

Combine like terms: 63 + -63 = 0
0 + 4x = -9 + -63
4x = -9 + -63

Combine like terms: -9 + -63 = -72
4x = -72

Divide each side by '4'.
x = -18

Simplifying
x = -18

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