1+7(-7-r)=-11r-2(r+12)

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Solution for 1+7(-7-r)=-11r-2(r+12) equation:


Simplifying
1 + 7(-7 + -1r) = -11r + -2(r + 12)
1 + (-7 * 7 + -1r * 7) = -11r + -2(r + 12)
1 + (-49 + -7r) = -11r + -2(r + 12)

Combine like terms: 1 + -49 = -48
-48 + -7r = -11r + -2(r + 12)

Reorder the terms:
-48 + -7r = -11r + -2(12 + r)
-48 + -7r = -11r + (12 * -2 + r * -2)
-48 + -7r = -11r + (-24 + -2r)

Reorder the terms:
-48 + -7r = -24 + -11r + -2r

Combine like terms: -11r + -2r = -13r
-48 + -7r = -24 + -13r

Solving
-48 + -7r = -24 + -13r

Solving for variable 'r'.

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

Add '13r' to each side of the equation.
-48 + -7r + 13r = -24 + -13r + 13r

Combine like terms: -7r + 13r = 6r
-48 + 6r = -24 + -13r + 13r

Combine like terms: -13r + 13r = 0
-48 + 6r = -24 + 0
-48 + 6r = -24

Add '48' to each side of the equation.
-48 + 48 + 6r = -24 + 48

Combine like terms: -48 + 48 = 0
0 + 6r = -24 + 48
6r = -24 + 48

Combine like terms: -24 + 48 = 24
6r = 24

Divide each side by '6'.
r = 4

Simplifying
r = 4

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