(7X-1)3=8(2X+4)

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Solution for (7X-1)3=8(2X+4) equation:


Simplifying
(7X + -1) * 3 = 8(2X + 4)

Reorder the terms:
(-1 + 7X) * 3 = 8(2X + 4)

Reorder the terms for easier multiplication:
3(-1 + 7X) = 8(2X + 4)
(-1 * 3 + 7X * 3) = 8(2X + 4)
(-3 + 21X) = 8(2X + 4)

Reorder the terms:
-3 + 21X = 8(4 + 2X)
-3 + 21X = (4 * 8 + 2X * 8)
-3 + 21X = (32 + 16X)

Solving
-3 + 21X = 32 + 16X

Solving for variable 'X'.

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

Add '-16X' to each side of the equation.
-3 + 21X + -16X = 32 + 16X + -16X

Combine like terms: 21X + -16X = 5X
-3 + 5X = 32 + 16X + -16X

Combine like terms: 16X + -16X = 0
-3 + 5X = 32 + 0
-3 + 5X = 32

Add '3' to each side of the equation.
-3 + 3 + 5X = 32 + 3

Combine like terms: -3 + 3 = 0
0 + 5X = 32 + 3
5X = 32 + 3

Combine like terms: 32 + 3 = 35
5X = 35

Divide each side by '5'.
X = 7

Simplifying
X = 7

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