-3(2r+4)=-28-4r

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Solution for -3(2r+4)=-28-4r equation:


Simplifying
-3(2r + 4) = -28 + -4r

Reorder the terms:
-3(4 + 2r) = -28 + -4r
(4 * -3 + 2r * -3) = -28 + -4r
(-12 + -6r) = -28 + -4r

Solving
-12 + -6r = -28 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
-12 + -6r + 4r = -28 + -4r + 4r

Combine like terms: -6r + 4r = -2r
-12 + -2r = -28 + -4r + 4r

Combine like terms: -4r + 4r = 0
-12 + -2r = -28 + 0
-12 + -2r = -28

Add '12' to each side of the equation.
-12 + 12 + -2r = -28 + 12

Combine like terms: -12 + 12 = 0
0 + -2r = -28 + 12
-2r = -28 + 12

Combine like terms: -28 + 12 = -16
-2r = -16

Divide each side by '-2'.
r = 8

Simplifying
r = 8

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