51=-6(r+4)-7(1+5r)

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Solution for 51=-6(r+4)-7(1+5r) equation:


Simplifying
51 = -6(r + 4) + -7(1 + 5r)

Reorder the terms:
51 = -6(4 + r) + -7(1 + 5r)
51 = (4 * -6 + r * -6) + -7(1 + 5r)
51 = (-24 + -6r) + -7(1 + 5r)
51 = -24 + -6r + (1 * -7 + 5r * -7)
51 = -24 + -6r + (-7 + -35r)

Reorder the terms:
51 = -24 + -7 + -6r + -35r

Combine like terms: -24 + -7 = -31
51 = -31 + -6r + -35r

Combine like terms: -6r + -35r = -41r
51 = -31 + -41r

Solving
51 = -31 + -41r

Solving for variable 'r'.

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

Add '41r' to each side of the equation.
51 + 41r = -31 + -41r + 41r

Combine like terms: -41r + 41r = 0
51 + 41r = -31 + 0
51 + 41r = -31

Add '-51' to each side of the equation.
51 + -51 + 41r = -31 + -51

Combine like terms: 51 + -51 = 0
0 + 41r = -31 + -51
41r = -31 + -51

Combine like terms: -31 + -51 = -82
41r = -82

Divide each side by '41'.
r = -2

Simplifying
r = -2

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