9(x+6)=4(x+21)

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Solution for 9(x+6)=4(x+21) equation:


Simplifying
9(x + 6) = 4(x + 21)

Reorder the terms:
9(6 + x) = 4(x + 21)
(6 * 9 + x * 9) = 4(x + 21)
(54 + 9x) = 4(x + 21)

Reorder the terms:
54 + 9x = 4(21 + x)
54 + 9x = (21 * 4 + x * 4)
54 + 9x = (84 + 4x)

Solving
54 + 9x = 84 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
54 + 9x + -4x = 84 + 4x + -4x

Combine like terms: 9x + -4x = 5x
54 + 5x = 84 + 4x + -4x

Combine like terms: 4x + -4x = 0
54 + 5x = 84 + 0
54 + 5x = 84

Add '-54' to each side of the equation.
54 + -54 + 5x = 84 + -54

Combine like terms: 54 + -54 = 0
0 + 5x = 84 + -54
5x = 84 + -54

Combine like terms: 84 + -54 = 30
5x = 30

Divide each side by '5'.
x = 6

Simplifying
x = 6

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