6+4x-2=21

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Solution for 6+4x-2=21 equation: 


Simplifying
6 + 4x + -2 = 21

Reorder the terms:
6 + -2 + 4x = 21

Combine like terms: 6 + -2 = 4
4 + 4x = 21

Solving
4 + 4x = 21

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 4x = 21 + -4

Combine like terms: 4 + -4 = 0
0 + 4x = 21 + -4
4x = 21 + -4

Combine like terms: 21 + -4 = 17
4x = 17

Divide each side by '4'.
x = 4.25

Simplifying
x = 4.25

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