27=-8+4(r-7)

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Solution for 27=-8+4(r-7) equation:


Simplifying
27 = -8 + 4(r + -7)

Reorder the terms:
27 = -8 + 4(-7 + r)
27 = -8 + (-7 * 4 + r * 4)
27 = -8 + (-28 + 4r)

Combine like terms: -8 + -28 = -36
27 = -36 + 4r

Solving
27 = -36 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
27 + -4r = -36 + 4r + -4r

Combine like terms: 4r + -4r = 0
27 + -4r = -36 + 0
27 + -4r = -36

Add '-27' to each side of the equation.
27 + -27 + -4r = -36 + -27

Combine like terms: 27 + -27 = 0
0 + -4r = -36 + -27
-4r = -36 + -27

Combine like terms: -36 + -27 = -63
-4r = -63

Divide each side by '-4'.
r = 15.75

Simplifying
r = 15.75

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