(-3r+4+11+4r)-(5r+3)=

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Solution for (-3r+4+11+4r)-(5r+3)= equation:


Simplifying
(-3r + 4 + 11 + 4r) + -1(5r + 3) = 0

Reorder the terms:
(4 + 11 + -3r + 4r) + -1(5r + 3) = 0

Combine like terms: 4 + 11 = 15
(15 + -3r + 4r) + -1(5r + 3) = 0

Combine like terms: -3r + 4r = 1r
(15 + 1r) + -1(5r + 3) = 0

Remove parenthesis around (15 + 1r)
15 + 1r + -1(5r + 3) = 0

Reorder the terms:
15 + 1r + -1(3 + 5r) = 0
15 + 1r + (3 * -1 + 5r * -1) = 0
15 + 1r + (-3 + -5r) = 0

Reorder the terms:
15 + -3 + 1r + -5r = 0

Combine like terms: 15 + -3 = 12
12 + 1r + -5r = 0

Combine like terms: 1r + -5r = -4r
12 + -4r = 0

Solving
12 + -4r = 0

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + -4r = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -4r = 0 + -12
-4r = 0 + -12

Combine like terms: 0 + -12 = -12
-4r = -12

Divide each side by '-4'.
r = 3

Simplifying
r = 3

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