-105=-3(4r+3)

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Solution for -105=-3(4r+3) equation:


Simplifying
-105 = -3(4r + 3)

Reorder the terms:
-105 = -3(3 + 4r)
-105 = (3 * -3 + 4r * -3)
-105 = (-9 + -12r)

Solving
-105 = -9 + -12r

Solving for variable 'r'.

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

Add '12r' to each side of the equation.
-105 + 12r = -9 + -12r + 12r

Combine like terms: -12r + 12r = 0
-105 + 12r = -9 + 0
-105 + 12r = -9

Add '105' to each side of the equation.
-105 + 105 + 12r = -9 + 105

Combine like terms: -105 + 105 = 0
0 + 12r = -9 + 105
12r = -9 + 105

Combine like terms: -9 + 105 = 96
12r = 96

Divide each side by '12'.
r = 8

Simplifying
r = 8

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