123=6r-5(3+8r)

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Solution for 123=6r-5(3+8r) equation:


Simplifying
123 = 6r + -5(3 + 8r)
123 = 6r + (3 * -5 + 8r * -5)
123 = 6r + (-15 + -40r)

Reorder the terms:
123 = -15 + 6r + -40r

Combine like terms: 6r + -40r = -34r
123 = -15 + -34r

Solving
123 = -15 + -34r

Solving for variable 'r'.

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

Add '34r' to each side of the equation.
123 + 34r = -15 + -34r + 34r

Combine like terms: -34r + 34r = 0
123 + 34r = -15 + 0
123 + 34r = -15

Add '-123' to each side of the equation.
123 + -123 + 34r = -15 + -123

Combine like terms: 123 + -123 = 0
0 + 34r = -15 + -123
34r = -15 + -123

Combine like terms: -15 + -123 = -138
34r = -138

Divide each side by '34'.
r = -4.058823529

Simplifying
r = -4.058823529

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