2r=-4(2r+7.1)

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Solution for 2r=-4(2r+7.1) equation: 


Simplifying
2r = -4(2r + 7.1)

Reorder the terms:
2r = -4(7.1 + 2r)
2r = (7.1 * -4 + 2r * -4)
2r = (-28.4 + -8r)

Solving
2r = -28.4 + -8r

Solving for variable 'r'.

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

Add '8r' to each side of the equation.
2r + 8r = -28.4 + -8r + 8r

Combine like terms: 2r + 8r = 10r
10r = -28.4 + -8r + 8r

Combine like terms: -8r + 8r = 0
10r = -28.4 + 0
10r = -28.4

Divide each side by '10'.
r = -2.84

Simplifying
r = -2.84

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