168=r*4

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Solution for 168=r*4 equation:


Simplifying
168 = r * 4

Reorder the terms for easier multiplication:
168 = 4r

Solving
168 = 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
168 + -4r = 4r + -4r

Combine like terms: 4r + -4r = 0
168 + -4r = 0

Add '-168' to each side of the equation.
168 + -168 + -4r = 0 + -168

Combine like terms: 168 + -168 = 0
0 + -4r = 0 + -168
-4r = 0 + -168

Combine like terms: 0 + -168 = -168
-4r = -168

Divide each side by '-4'.
r = 42

Simplifying
r = 42

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