3(4r+3)=-(3-1)

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Solution for 3(4r+3)=-(3-1) equation:


Simplifying
3(4r + 3) = -1(3 + -1)

Reorder the terms:
3(3 + 4r) = -1(3 + -1)
(3 * 3 + 4r * 3) = -1(3 + -1)
(9 + 12r) = -1(3 + -1)

Combine like terms: 3 + -1 = 2
9 + 12r = -1(2)

Multiply -1 * 2
9 + 12r = -2

Solving
9 + 12r = -2

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + 12r = -2 + -9

Combine like terms: 9 + -9 = 0
0 + 12r = -2 + -9
12r = -2 + -9

Combine like terms: -2 + -9 = -11
12r = -11

Divide each side by '12'.
r = -0.9166666667

Simplifying
r = -0.9166666667

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