4+5r=7r-4

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


Simplifying
4 + 5r = 7r + -4

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

Solving
4 + 5r = -4 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
4 + 5r + -7r = -4 + 7r + -7r

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

Combine like terms: 7r + -7r = 0
4 + -2r = -4 + 0
4 + -2r = -4

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

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

Combine like terms: -4 + -4 = -8
-2r = -8

Divide each side by '-2'.
r = 4

Simplifying
r = 4

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