2r-13-[-6r+4]=

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Solution for 2r-13-[-6r+4]= equation:


Simplifying
2r + -13 + -1[-6r + 4] = 0

Reorder the terms:
2r + -13 + -1[4 + -6r] = 0
2r + -13 + [4 * -1 + -6r * -1] = 0
2r + -13 + [-4 + 6r] = 0

Reorder the terms:
-13 + -4 + 2r + 6r = 0

Combine like terms: -13 + -4 = -17
-17 + 2r + 6r = 0

Combine like terms: 2r + 6r = 8r
-17 + 8r = 0

Solving
-17 + 8r = 0

Solving for variable 'r'.

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

Add '17' to each side of the equation.
-17 + 17 + 8r = 0 + 17

Combine like terms: -17 + 17 = 0
0 + 8r = 0 + 17
8r = 0 + 17

Combine like terms: 0 + 17 = 17
8r = 17

Divide each side by '8'.
r = 2.125

Simplifying
r = 2.125

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