12r+34=6r-(-9)

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Solution for 12r+34=6r-(-9) equation:


Simplifying
12r + 34 = 6r + -1(-9)

Reorder the terms:
34 + 12r = 6r + -1(-9)

Multiply -1 * -9
34 + 12r = 6r + 9

Reorder the terms:
34 + 12r = 9 + 6r

Solving
34 + 12r = 9 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
34 + 12r + -6r = 9 + 6r + -6r

Combine like terms: 12r + -6r = 6r
34 + 6r = 9 + 6r + -6r

Combine like terms: 6r + -6r = 0
34 + 6r = 9 + 0
34 + 6r = 9

Add '-34' to each side of the equation.
34 + -34 + 6r = 9 + -34

Combine like terms: 34 + -34 = 0
0 + 6r = 9 + -34
6r = 9 + -34

Combine like terms: 9 + -34 = -25
6r = -25

Divide each side by '6'.
r = -4.166666667

Simplifying
r = -4.166666667

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