5r-9+2r=3r+7-4r

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Solution for 5r-9+2r=3r+7-4r equation:


Simplifying
5r + -9 + 2r = 3r + 7 + -4r

Reorder the terms:
-9 + 5r + 2r = 3r + 7 + -4r

Combine like terms: 5r + 2r = 7r
-9 + 7r = 3r + 7 + -4r

Reorder the terms:
-9 + 7r = 7 + 3r + -4r

Combine like terms: 3r + -4r = -1r
-9 + 7r = 7 + -1r

Solving
-9 + 7r = 7 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
-9 + 7r + r = 7 + -1r + r

Combine like terms: 7r + r = 8r
-9 + 8r = 7 + -1r + r

Combine like terms: -1r + r = 0
-9 + 8r = 7 + 0
-9 + 8r = 7

Add '9' to each side of the equation.
-9 + 9 + 8r = 7 + 9

Combine like terms: -9 + 9 = 0
0 + 8r = 7 + 9
8r = 7 + 9

Combine like terms: 7 + 9 = 16
8r = 16

Divide each side by '8'.
r = 2

Simplifying
r = 2

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