9X+21=5X+5

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Solution for 9X+21=5X+5 equation:


Simplifying
9X + 21 = 5X + 5

Reorder the terms:
21 + 9X = 5X + 5

Reorder the terms:
21 + 9X = 5 + 5X

Solving
21 + 9X = 5 + 5X

Solving for variable 'X'.

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

Add '-5X' to each side of the equation.
21 + 9X + -5X = 5 + 5X + -5X

Combine like terms: 9X + -5X = 4X
21 + 4X = 5 + 5X + -5X

Combine like terms: 5X + -5X = 0
21 + 4X = 5 + 0
21 + 4X = 5

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

Combine like terms: 21 + -21 = 0
0 + 4X = 5 + -21
4X = 5 + -21

Combine like terms: 5 + -21 = -16
4X = -16

Divide each side by '4'.
X = -4

Simplifying
X = -4

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