(13x-5)5+21=(3+8x)8

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Solution for (13x-5)5+21=(3+8x)8 equation:


Simplifying
(13x + -5) * 5 + 21 = (3 + 8x) * 8

Reorder the terms:
(-5 + 13x) * 5 + 21 = (3 + 8x) * 8

Reorder the terms for easier multiplication:
5(-5 + 13x) + 21 = (3 + 8x) * 8
(-5 * 5 + 13x * 5) + 21 = (3 + 8x) * 8
(-25 + 65x) + 21 = (3 + 8x) * 8

Reorder the terms:
-25 + 21 + 65x = (3 + 8x) * 8

Combine like terms: -25 + 21 = -4
-4 + 65x = (3 + 8x) * 8

Reorder the terms for easier multiplication:
-4 + 65x = 8(3 + 8x)
-4 + 65x = (3 * 8 + 8x * 8)
-4 + 65x = (24 + 64x)

Solving
-4 + 65x = 24 + 64x

Solving for variable 'x'.

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

Add '-64x' to each side of the equation.
-4 + 65x + -64x = 24 + 64x + -64x

Combine like terms: 65x + -64x = 1x
-4 + 1x = 24 + 64x + -64x

Combine like terms: 64x + -64x = 0
-4 + 1x = 24 + 0
-4 + 1x = 24

Add '4' to each side of the equation.
-4 + 4 + 1x = 24 + 4

Combine like terms: -4 + 4 = 0
0 + 1x = 24 + 4
1x = 24 + 4

Combine like terms: 24 + 4 = 28
1x = 28

Divide each side by '1'.
x = 28

Simplifying
x = 28

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