5r-4=-8+7r

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Solution for 5r-4=-8+7r equation:


Simplifying
5r + -4 = -8 + 7r

Reorder the terms:
-4 + 5r = -8 + 7r

Solving
-4 + 5r = -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.
-4 + 5r + -7r = -8 + 7r + -7r

Combine like terms: 5r + -7r = -2r
-4 + -2r = -8 + 7r + -7r

Combine like terms: 7r + -7r = 0
-4 + -2r = -8 + 0
-4 + -2r = -8

Add '4' to each side of the equation.
-4 + 4 + -2r = -8 + 4

Combine like terms: -4 + 4 = 0
0 + -2r = -8 + 4
-2r = -8 + 4

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

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

Simplifying
r = 2

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