2r-8+4=5(r+1)

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Solution for 2r-8+4=5(r+1) equation:


Simplifying
2r + -8 + 4 = 5(r + 1)

Reorder the terms:
-8 + 4 + 2r = 5(r + 1)

Combine like terms: -8 + 4 = -4
-4 + 2r = 5(r + 1)

Reorder the terms:
-4 + 2r = 5(1 + r)
-4 + 2r = (1 * 5 + r * 5)
-4 + 2r = (5 + 5r)

Solving
-4 + 2r = 5 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
-4 + 2r + -5r = 5 + 5r + -5r

Combine like terms: 2r + -5r = -3r
-4 + -3r = 5 + 5r + -5r

Combine like terms: 5r + -5r = 0
-4 + -3r = 5 + 0
-4 + -3r = 5

Add '4' to each side of the equation.
-4 + 4 + -3r = 5 + 4

Combine like terms: -4 + 4 = 0
0 + -3r = 5 + 4
-3r = 5 + 4

Combine like terms: 5 + 4 = 9
-3r = 9

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

Simplifying
r = -3

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