7(1-4r)=-133

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Solution for 7(1-4r)=-133 equation: 


Simplifying
7(1 + -4r) = -133
(1 * 7 + -4r * 7) = -133
(7 + -28r) = -133

Solving
7 + -28r = -133

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + -28r = -133 + -7

Combine like terms: 7 + -7 = 0
0 + -28r = -133 + -7
-28r = -133 + -7

Combine like terms: -133 + -7 = -140
-28r = -140

Divide each side by '-28'.
r = 5

Simplifying
r = 5

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