21x-24=3(6x-9)

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Solution for 21x-24=3(6x-9) equation:


Simplifying
21x + -24 = 3(6x + -9)

Reorder the terms:
-24 + 21x = 3(6x + -9)

Reorder the terms:
-24 + 21x = 3(-9 + 6x)
-24 + 21x = (-9 * 3 + 6x * 3)
-24 + 21x = (-27 + 18x)

Solving
-24 + 21x = -27 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
-24 + 21x + -18x = -27 + 18x + -18x

Combine like terms: 21x + -18x = 3x
-24 + 3x = -27 + 18x + -18x

Combine like terms: 18x + -18x = 0
-24 + 3x = -27 + 0
-24 + 3x = -27

Add '24' to each side of the equation.
-24 + 24 + 3x = -27 + 24

Combine like terms: -24 + 24 = 0
0 + 3x = -27 + 24
3x = -27 + 24

Combine like terms: -27 + 24 = -3
3x = -3

Divide each side by '3'.
x = -1

Simplifying
x = -1

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