-6r+3(4r+7)=

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Solution for -6r+3(4r+7)= equation:


Simplifying
-6r + 3(4r + 7) = 0

Reorder the terms:
-6r + 3(7 + 4r) = 0
-6r + (7 * 3 + 4r * 3) = 0
-6r + (21 + 12r) = 0

Reorder the terms:
21 + -6r + 12r = 0

Combine like terms: -6r + 12r = 6r
21 + 6r = 0

Solving
21 + 6r = 0

Solving for variable 'r'.

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

Add '-21' to each side of the equation.
21 + -21 + 6r = 0 + -21

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

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

Divide each side by '6'.
r = -3.5

Simplifying
r = -3.5

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