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 = 18r
34 + 18r = -9 + -6r + 6r

Combine like terms: -6r + 6r = 0
34 + 18r = -9 + 0
34 + 18r = -9

Add '-34' to each side of the equation.
34 + -34 + 18r = -9 + -34

Combine like terms: 34 + -34 = 0
0 + 18r = -9 + -34
18r = -9 + -34

Combine like terms: -9 + -34 = -43
18r = -43

Divide each side by '18'.
r = -2.388888889

Simplifying
r = -2.388888889

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