x-5+3x=6x-21

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Solution for x-5+3x=6x-21 equation:


Simplifying
x + -5 + 3x = 6x + -21

Reorder the terms:
-5 + x + 3x = 6x + -21

Combine like terms: x + 3x = 4x
-5 + 4x = 6x + -21

Reorder the terms:
-5 + 4x = -21 + 6x

Solving
-5 + 4x = -21 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-5 + 4x + -6x = -21 + 6x + -6x

Combine like terms: 4x + -6x = -2x
-5 + -2x = -21 + 6x + -6x

Combine like terms: 6x + -6x = 0
-5 + -2x = -21 + 0
-5 + -2x = -21

Add '5' to each side of the equation.
-5 + 5 + -2x = -21 + 5

Combine like terms: -5 + 5 = 0
0 + -2x = -21 + 5
-2x = -21 + 5

Combine like terms: -21 + 5 = -16
-2x = -16

Divide each side by '-2'.
x = 8

Simplifying
x = 8

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