-4-3r=-5(3r+4)

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Solution for -4-3r=-5(3r+4) equation:


Simplifying
-4 + -3r = -5(3r + 4)

Reorder the terms:
-4 + -3r = -5(4 + 3r)
-4 + -3r = (4 * -5 + 3r * -5)
-4 + -3r = (-20 + -15r)

Solving
-4 + -3r = -20 + -15r

Solving for variable 'r'.

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

Add '15r' to each side of the equation.
-4 + -3r + 15r = -20 + -15r + 15r

Combine like terms: -3r + 15r = 12r
-4 + 12r = -20 + -15r + 15r

Combine like terms: -15r + 15r = 0
-4 + 12r = -20 + 0
-4 + 12r = -20

Add '4' to each side of the equation.
-4 + 4 + 12r = -20 + 4

Combine like terms: -4 + 4 = 0
0 + 12r = -20 + 4
12r = -20 + 4

Combine like terms: -20 + 4 = -16
12r = -16

Divide each side by '12'.
r = -1.333333333

Simplifying
r = -1.333333333

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