12x+9=8x+4

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Solution for 12x+9=8x+4 equation:


Simplifying
12x + 9 = 8x + 4

Reorder the terms:
9 + 12x = 8x + 4

Reorder the terms:
9 + 12x = 4 + 8x

Solving
9 + 12x = 4 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
9 + 12x + -8x = 4 + 8x + -8x

Combine like terms: 12x + -8x = 4x
9 + 4x = 4 + 8x + -8x

Combine like terms: 8x + -8x = 0
9 + 4x = 4 + 0
9 + 4x = 4

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

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

Combine like terms: 4 + -9 = -5
4x = -5

Divide each side by '4'.
x = -1.25

Simplifying
x = -1.25

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