21=2+8x

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Solution for 21=2+8x equation:


Simplifying
21 = 2 + 8x

Solving
21 = 2 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
21 + -8x = 2 + 8x + -8x

Combine like terms: 8x + -8x = 0
21 + -8x = 2 + 0
21 + -8x = 2

Add '-21' to each side of the equation.
21 + -21 + -8x = 2 + -21

Combine like terms: 21 + -21 = 0
0 + -8x = 2 + -21
-8x = 2 + -21

Combine like terms: 2 + -21 = -19
-8x = -19

Divide each side by '-8'.
x = 2.375

Simplifying
x = 2.375

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