8=4x(r+4)

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Solution for 8=4x(r+4) equation:


Simplifying
8 = 4x(r + 4)

Reorder the terms:
8 = 4x(4 + r)
8 = (4 * 4x + r * 4x)

Reorder the terms:
8 = (4rx + 16x)
8 = (4rx + 16x)

Solving
8 = 4rx + 16x

Solving for variable 'r'.

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

Add '-4rx' to each side of the equation.
8 + -4rx = 4rx + -4rx + 16x

Combine like terms: 4rx + -4rx = 0
8 + -4rx = 0 + 16x
8 + -4rx = 16x

Add '-8' to each side of the equation.
8 + -8 + -4rx = -8 + 16x

Combine like terms: 8 + -8 = 0
0 + -4rx = -8 + 16x
-4rx = -8 + 16x

Divide each side by '-4x'.
r = 2x-1 + -4

Simplifying
r = 2x-1 + -4

Reorder the terms:
r = -4 + 2x-1

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