7r-3r+4=7r-r

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


Simplifying
7r + -3r + 4 = 7r + -1r

Reorder the terms:
4 + 7r + -3r = 7r + -1r

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

Combine like terms: 7r + -1r = 6r
4 + 4r = 6r

Solving
4 + 4r = 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
4 + 4r + -6r = 6r + -6r

Combine like terms: 4r + -6r = -2r
4 + -2r = 6r + -6r

Combine like terms: 6r + -6r = 0
4 + -2r = 0

Add '-4' to each side of the equation.
4 + -4 + -2r = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -2r = 0 + -4
-2r = 0 + -4

Combine like terms: 0 + -4 = -4
-2r = -4

Divide each side by '-2'.
r = 2

Simplifying
r = 2

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