7+4r=7r-8

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Solution for 7+4r=7r-8 equation:


Simplifying
7 + 4r = 7r + -8

Reorder the terms:
7 + 4r = -8 + 7r

Solving
7 + 4r = -8 + 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.
7 + 4r + -7r = -8 + 7r + -7r

Combine like terms: 4r + -7r = -3r
7 + -3r = -8 + 7r + -7r

Combine like terms: 7r + -7r = 0
7 + -3r = -8 + 0
7 + -3r = -8

Add '-7' to each side of the equation.
7 + -7 + -3r = -8 + -7

Combine like terms: 7 + -7 = 0
0 + -3r = -8 + -7
-3r = -8 + -7

Combine like terms: -8 + -7 = -15
-3r = -15

Divide each side by '-3'.
r = 5

Simplifying
r = 5

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