4r+27=-[r-7]

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Solution for 4r+27=-[r-7] equation:


Simplifying
4r + 27 = -1[r + -7]

Reorder the terms:
27 + 4r = -1[r + -7]

Reorder the terms:
27 + 4r = -1[-7 + r]
27 + 4r = [-7 * -1 + r * -1]
27 + 4r = [7 + -1r]

Solving
27 + 4r = 7 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
27 + 4r + r = 7 + -1r + r

Combine like terms: 4r + r = 5r
27 + 5r = 7 + -1r + r

Combine like terms: -1r + r = 0
27 + 5r = 7 + 0
27 + 5r = 7

Add '-27' to each side of the equation.
27 + -27 + 5r = 7 + -27

Combine like terms: 27 + -27 = 0
0 + 5r = 7 + -27
5r = 7 + -27

Combine like terms: 7 + -27 = -20
5r = -20

Divide each side by '5'.
r = -4

Simplifying
r = -4

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