21x-11=4(5x+4)-5

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Solution for 21x-11=4(5x+4)-5 equation:


Simplifying
21x + -11 = 4(5x + 4) + -5

Reorder the terms:
-11 + 21x = 4(5x + 4) + -5

Reorder the terms:
-11 + 21x = 4(4 + 5x) + -5
-11 + 21x = (4 * 4 + 5x * 4) + -5
-11 + 21x = (16 + 20x) + -5

Reorder the terms:
-11 + 21x = 16 + -5 + 20x

Combine like terms: 16 + -5 = 11
-11 + 21x = 11 + 20x

Solving
-11 + 21x = 11 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
-11 + 21x + -20x = 11 + 20x + -20x

Combine like terms: 21x + -20x = 1x
-11 + 1x = 11 + 20x + -20x

Combine like terms: 20x + -20x = 0
-11 + 1x = 11 + 0
-11 + 1x = 11

Add '11' to each side of the equation.
-11 + 11 + 1x = 11 + 11

Combine like terms: -11 + 11 = 0
0 + 1x = 11 + 11
1x = 11 + 11

Combine like terms: 11 + 11 = 22
1x = 22

Divide each side by '1'.
x = 22

Simplifying
x = 22

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