21x+42=11-x-21

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Solution for 21x+42=11-x-21 equation:


Simplifying
21x + 42 = 11 + -1x + -21

Reorder the terms:
42 + 21x = 11 + -1x + -21

Reorder the terms:
42 + 21x = 11 + -21 + -1x

Combine like terms: 11 + -21 = -10
42 + 21x = -10 + -1x

Solving
42 + 21x = -10 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
42 + 21x + x = -10 + -1x + x

Combine like terms: 21x + x = 22x
42 + 22x = -10 + -1x + x

Combine like terms: -1x + x = 0
42 + 22x = -10 + 0
42 + 22x = -10

Add '-42' to each side of the equation.
42 + -42 + 22x = -10 + -42

Combine like terms: 42 + -42 = 0
0 + 22x = -10 + -42
22x = -10 + -42

Combine like terms: -10 + -42 = -52
22x = -52

Divide each side by '22'.
x = -2.363636364

Simplifying
x = -2.363636364

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