45=-(8r+1)-2(1+4r)

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Solution for 45=-(8r+1)-2(1+4r) equation:


Simplifying
45 = -1(8r + 1) + -2(1 + 4r)

Reorder the terms:
45 = -1(1 + 8r) + -2(1 + 4r)
45 = (1 * -1 + 8r * -1) + -2(1 + 4r)
45 = (-1 + -8r) + -2(1 + 4r)
45 = -1 + -8r + (1 * -2 + 4r * -2)
45 = -1 + -8r + (-2 + -8r)

Reorder the terms:
45 = -1 + -2 + -8r + -8r

Combine like terms: -1 + -2 = -3
45 = -3 + -8r + -8r

Combine like terms: -8r + -8r = -16r
45 = -3 + -16r

Solving
45 = -3 + -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.
45 + 16r = -3 + -16r + 16r

Combine like terms: -16r + 16r = 0
45 + 16r = -3 + 0
45 + 16r = -3

Add '-45' to each side of the equation.
45 + -45 + 16r = -3 + -45

Combine like terms: 45 + -45 = 0
0 + 16r = -3 + -45
16r = -3 + -45

Combine like terms: -3 + -45 = -48
16r = -48

Divide each side by '16'.
r = -3

Simplifying
r = -3

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