21x+6=17x-20

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Solution for 21x+6=17x-20 equation:


Simplifying
21x + 6 = 17x + -20

Reorder the terms:
6 + 21x = 17x + -20

Reorder the terms:
6 + 21x = -20 + 17x

Solving
6 + 21x = -20 + 17x

Solving for variable 'x'.

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

Add '-17x' to each side of the equation.
6 + 21x + -17x = -20 + 17x + -17x

Combine like terms: 21x + -17x = 4x
6 + 4x = -20 + 17x + -17x

Combine like terms: 17x + -17x = 0
6 + 4x = -20 + 0
6 + 4x = -20

Add '-6' to each side of the equation.
6 + -6 + 4x = -20 + -6

Combine like terms: 6 + -6 = 0
0 + 4x = -20 + -6
4x = -20 + -6

Combine like terms: -20 + -6 = -26
4x = -26

Divide each side by '4'.
x = -6.5

Simplifying
x = -6.5

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