-132=3(-2+7r)

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Solution for -132=3(-2+7r) equation:


Simplifying
-132 = 3(-2 + 7r)
-132 = (-2 * 3 + 7r * 3)
-132 = (-6 + 21r)

Solving
-132 = -6 + 21r

Solving for variable 'r'.

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

Add '-21r' to each side of the equation.
-132 + -21r = -6 + 21r + -21r

Combine like terms: 21r + -21r = 0
-132 + -21r = -6 + 0
-132 + -21r = -6

Add '132' to each side of the equation.
-132 + 132 + -21r = -6 + 132

Combine like terms: -132 + 132 = 0
0 + -21r = -6 + 132
-21r = -6 + 132

Combine like terms: -6 + 132 = 126
-21r = 126

Divide each side by '-21'.
r = -6

Simplifying
r = -6

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