3x+9x+17=4x-5+42

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Solution for 3x+9x+17=4x-5+42 equation:


Simplifying
3x + 9x + 17 = 4x + -5 + 42

Reorder the terms:
17 + 3x + 9x = 4x + -5 + 42

Combine like terms: 3x + 9x = 12x
17 + 12x = 4x + -5 + 42

Reorder the terms:
17 + 12x = -5 + 42 + 4x

Combine like terms: -5 + 42 = 37
17 + 12x = 37 + 4x

Solving
17 + 12x = 37 + 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.
17 + 12x + -4x = 37 + 4x + -4x

Combine like terms: 12x + -4x = 8x
17 + 8x = 37 + 4x + -4x

Combine like terms: 4x + -4x = 0
17 + 8x = 37 + 0
17 + 8x = 37

Add '-17' to each side of the equation.
17 + -17 + 8x = 37 + -17

Combine like terms: 17 + -17 = 0
0 + 8x = 37 + -17
8x = 37 + -17

Combine like terms: 37 + -17 = 20
8x = 20

Divide each side by '8'.
x = 2.5

Simplifying
x = 2.5

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