3x-9=4x+8

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Solution for 3x-9=4x+8 equation:


Simplifying
3x + -9 = 4x + 8

Reorder the terms:
-9 + 3x = 4x + 8

Reorder the terms:
-9 + 3x = 8 + 4x

Solving
-9 + 3x = 8 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-9 + 3x + -4x = 8 + 4x + -4x

Combine like terms: 3x + -4x = -1x
-9 + -1x = 8 + 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + -1x = 8 + 0
-9 + -1x = 8

Add '9' to each side of the equation.
-9 + 9 + -1x = 8 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = 8 + 9
-1x = 8 + 9

Combine like terms: 8 + 9 = 17
-1x = 17

Divide each side by '-1'.
x = -17

Simplifying
x = -17

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