8+7r+r+10=-9(11+r)+11(r+3)

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Solution for 8+7r+r+10=-9(11+r)+11(r+3) equation:


Simplifying
8 + 7r + r + 10 = -9(11 + r) + 11(r + 3)

Reorder the terms:
8 + 10 + 7r + r = -9(11 + r) + 11(r + 3)

Combine like terms: 8 + 10 = 18
18 + 7r + r = -9(11 + r) + 11(r + 3)

Combine like terms: 7r + r = 8r
18 + 8r = -9(11 + r) + 11(r + 3)
18 + 8r = (11 * -9 + r * -9) + 11(r + 3)
18 + 8r = (-99 + -9r) + 11(r + 3)

Reorder the terms:
18 + 8r = -99 + -9r + 11(3 + r)
18 + 8r = -99 + -9r + (3 * 11 + r * 11)
18 + 8r = -99 + -9r + (33 + 11r)

Reorder the terms:
18 + 8r = -99 + 33 + -9r + 11r

Combine like terms: -99 + 33 = -66
18 + 8r = -66 + -9r + 11r

Combine like terms: -9r + 11r = 2r
18 + 8r = -66 + 2r

Solving
18 + 8r = -66 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
18 + 8r + -2r = -66 + 2r + -2r

Combine like terms: 8r + -2r = 6r
18 + 6r = -66 + 2r + -2r

Combine like terms: 2r + -2r = 0
18 + 6r = -66 + 0
18 + 6r = -66

Add '-18' to each side of the equation.
18 + -18 + 6r = -66 + -18

Combine like terms: 18 + -18 = 0
0 + 6r = -66 + -18
6r = -66 + -18

Combine like terms: -66 + -18 = -84
6r = -84

Divide each side by '6'.
r = -14

Simplifying
r = -14

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