(3+r)=3+4

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Solution for (3+r)=3+4 equation: 


Simplifying
(3 + r) = 3 + 4

Remove parenthesis around (3 + r)
3 + r = 3 + 4

Combine like terms: 3 + 4 = 7
3 + r = 7

Solving
3 + r = 7

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + -3 + r = 7 + -3

Combine like terms: 3 + -3 = 0
0 + r = 7 + -3
r = 7 + -3

Combine like terms: 7 + -3 = 4
r = 4

Simplifying
r = 4

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