7+4r-8-r=r+3r

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Solution for 7+4r-8-r=r+3r equation:


Simplifying
7 + 4r + -8 + -1r = r + 3r

Reorder the terms:
7 + -8 + 4r + -1r = r + 3r

Combine like terms: 7 + -8 = -1
-1 + 4r + -1r = r + 3r

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

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

Solving
-1 + 3r = 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
-1 + 3r + -4r = 4r + -4r

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

Combine like terms: 4r + -4r = 0
-1 + -1r = 0

Add '1' to each side of the equation.
-1 + 1 + -1r = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -1r = 0 + 1
-1r = 0 + 1

Combine like terms: 0 + 1 = 1
-1r = 1

Divide each side by '-1'.
r = -1

Simplifying
r = -1

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