25-8r=1-4(4+4r)

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Solution for 25-8r=1-4(4+4r) equation:


Simplifying
25 + -8r = 1 + -4(4 + 4r)
25 + -8r = 1 + (4 * -4 + 4r * -4)
25 + -8r = 1 + (-16 + -16r)

Combine like terms: 1 + -16 = -15
25 + -8r = -15 + -16r

Solving
25 + -8r = -15 + -16r

Solving for variable 'r'.

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

Add '16r' to each side of the equation.
25 + -8r + 16r = -15 + -16r + 16r

Combine like terms: -8r + 16r = 8r
25 + 8r = -15 + -16r + 16r

Combine like terms: -16r + 16r = 0
25 + 8r = -15 + 0
25 + 8r = -15

Add '-25' to each side of the equation.
25 + -25 + 8r = -15 + -25

Combine like terms: 25 + -25 = 0
0 + 8r = -15 + -25
8r = -15 + -25

Combine like terms: -15 + -25 = -40
8r = -40

Divide each side by '8'.
r = -5

Simplifying
r = -5

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