20x+5(x-4)=21x+4

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Solution for 20x+5(x-4)=21x+4 equation:


Simplifying
20x + 5(x + -4) = 21x + 4

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

Reorder the terms:
-20 + 20x + 5x = 21x + 4

Combine like terms: 20x + 5x = 25x
-20 + 25x = 21x + 4

Reorder the terms:
-20 + 25x = 4 + 21x

Solving
-20 + 25x = 4 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
-20 + 25x + -21x = 4 + 21x + -21x

Combine like terms: 25x + -21x = 4x
-20 + 4x = 4 + 21x + -21x

Combine like terms: 21x + -21x = 0
-20 + 4x = 4 + 0
-20 + 4x = 4

Add '20' to each side of the equation.
-20 + 20 + 4x = 4 + 20

Combine like terms: -20 + 20 = 0
0 + 4x = 4 + 20
4x = 4 + 20

Combine like terms: 4 + 20 = 24
4x = 24

Divide each side by '4'.
x = 6

Simplifying
x = 6

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