2X+21=10X-75

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Solution for 2X+21=10X-75 equation:


Simplifying
2X + 21 = 10X + -75

Reorder the terms:
21 + 2X = 10X + -75

Reorder the terms:
21 + 2X = -75 + 10X

Solving
21 + 2X = -75 + 10X

Solving for variable 'X'.

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

Add '-10X' to each side of the equation.
21 + 2X + -10X = -75 + 10X + -10X

Combine like terms: 2X + -10X = -8X
21 + -8X = -75 + 10X + -10X

Combine like terms: 10X + -10X = 0
21 + -8X = -75 + 0
21 + -8X = -75

Add '-21' to each side of the equation.
21 + -21 + -8X = -75 + -21

Combine like terms: 21 + -21 = 0
0 + -8X = -75 + -21
-8X = -75 + -21

Combine like terms: -75 + -21 = -96
-8X = -96

Divide each side by '-8'.
X = 12

Simplifying
X = 12

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