3r-7+4r=5r+23

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Solution for 3r-7+4r=5r+23 equation:


Simplifying
3r + -7 + 4r = 5r + 23

Reorder the terms:
-7 + 3r + 4r = 5r + 23

Combine like terms: 3r + 4r = 7r
-7 + 7r = 5r + 23

Reorder the terms:
-7 + 7r = 23 + 5r

Solving
-7 + 7r = 23 + 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.
-7 + 7r + -5r = 23 + 5r + -5r

Combine like terms: 7r + -5r = 2r
-7 + 2r = 23 + 5r + -5r

Combine like terms: 5r + -5r = 0
-7 + 2r = 23 + 0
-7 + 2r = 23

Add '7' to each side of the equation.
-7 + 7 + 2r = 23 + 7

Combine like terms: -7 + 7 = 0
0 + 2r = 23 + 7
2r = 23 + 7

Combine like terms: 23 + 7 = 30
2r = 30

Divide each side by '2'.
r = 15

Simplifying
r = 15

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