21x-5=4(5x+2)-3

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Solution for 21x-5=4(5x+2)-3 equation:


Simplifying
21x + -5 = 4(5x + 2) + -3

Reorder the terms:
-5 + 21x = 4(5x + 2) + -3

Reorder the terms:
-5 + 21x = 4(2 + 5x) + -3
-5 + 21x = (2 * 4 + 5x * 4) + -3
-5 + 21x = (8 + 20x) + -3

Reorder the terms:
-5 + 21x = 8 + -3 + 20x

Combine like terms: 8 + -3 = 5
-5 + 21x = 5 + 20x

Solving
-5 + 21x = 5 + 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.
-5 + 21x + -20x = 5 + 20x + -20x

Combine like terms: 21x + -20x = 1x
-5 + 1x = 5 + 20x + -20x

Combine like terms: 20x + -20x = 0
-5 + 1x = 5 + 0
-5 + 1x = 5

Add '5' to each side of the equation.
-5 + 5 + 1x = 5 + 5

Combine like terms: -5 + 5 = 0
0 + 1x = 5 + 5
1x = 5 + 5

Combine like terms: 5 + 5 = 10
1x = 10

Divide each side by '1'.
x = 10

Simplifying
x = 10

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