(4x-8)+(5x-19)=21

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Solution for (4x-8)+(5x-19)=21 equation:


Simplifying
(4x + -8) + (5x + -19) = 21

Reorder the terms:
(-8 + 4x) + (5x + -19) = 21

Remove parenthesis around (-8 + 4x)
-8 + 4x + (5x + -19) = 21

Reorder the terms:
-8 + 4x + (-19 + 5x) = 21

Remove parenthesis around (-19 + 5x)
-8 + 4x + -19 + 5x = 21

Reorder the terms:
-8 + -19 + 4x + 5x = 21

Combine like terms: -8 + -19 = -27
-27 + 4x + 5x = 21

Combine like terms: 4x + 5x = 9x
-27 + 9x = 21

Solving
-27 + 9x = 21

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 9x = 21 + 27

Combine like terms: -27 + 27 = 0
0 + 9x = 21 + 27
9x = 21 + 27

Combine like terms: 21 + 27 = 48
9x = 48

Divide each side by '9'.
x = 5.333333333

Simplifying
x = 5.333333333

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