-2r+40=-2r-8(1+6r)

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Solution for -2r+40=-2r-8(1+6r) equation: 


Simplifying
-2r + 40 = -2r + -8(1 + 6r)

Reorder the terms:
40 + -2r = -2r + -8(1 + 6r)
40 + -2r = -2r + (1 * -8 + 6r * -8)
40 + -2r = -2r + (-8 + -48r)

Reorder the terms:
40 + -2r = -8 + -2r + -48r

Combine like terms: -2r + -48r = -50r
40 + -2r = -8 + -50r

Solving
40 + -2r = -8 + -50r

Solving for variable 'r'.

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

Add '50r' to each side of the equation.
40 + -2r + 50r = -8 + -50r + 50r

Combine like terms: -2r + 50r = 48r
40 + 48r = -8 + -50r + 50r

Combine like terms: -50r + 50r = 0
40 + 48r = -8 + 0
40 + 48r = -8

Add '-40' to each side of the equation.
40 + -40 + 48r = -8 + -40

Combine like terms: 40 + -40 = 0
0 + 48r = -8 + -40
48r = -8 + -40

Combine like terms: -8 + -40 = -48
48r = -48

Divide each side by '48'.
r = -1

Simplifying
r = -1

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