8x=4(5x+21)

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


Simplifying
8x = 4(5x + 21)

Reorder the terms:
8x = 4(21 + 5x)
8x = (21 * 4 + 5x * 4)
8x = (84 + 20x)

Solving
8x = 84 + 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.
8x + -20x = 84 + 20x + -20x

Combine like terms: 8x + -20x = -12x
-12x = 84 + 20x + -20x

Combine like terms: 20x + -20x = 0
-12x = 84 + 0
-12x = 84

Divide each side by '-12'.
x = -7

Simplifying
x = -7

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