3x+17=7x-31

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Solution for 3x+17=7x-31 equation:


Simplifying
3x + 17 = 7x + -31

Reorder the terms:
17 + 3x = 7x + -31

Reorder the terms:
17 + 3x = -31 + 7x

Solving
17 + 3x = -31 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
17 + 3x + -7x = -31 + 7x + -7x

Combine like terms: 3x + -7x = -4x
17 + -4x = -31 + 7x + -7x

Combine like terms: 7x + -7x = 0
17 + -4x = -31 + 0
17 + -4x = -31

Add '-17' to each side of the equation.
17 + -17 + -4x = -31 + -17

Combine like terms: 17 + -17 = 0
0 + -4x = -31 + -17
-4x = -31 + -17

Combine like terms: -31 + -17 = -48
-4x = -48

Divide each side by '-4'.
x = 12

Simplifying
x = 12

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