7(r+4)-8r=

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


Simplifying
7(r + 4) + -8r = 0

Reorder the terms:
7(4 + r) + -8r = 0
(4 * 7 + r * 7) + -8r = 0
(28 + 7r) + -8r = 0

Combine like terms: 7r + -8r = -1r
28 + -1r = 0

Solving
28 + -1r = 0

Solving for variable 'r'.

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

Add '-28' to each side of the equation.
28 + -28 + -1r = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -1r = 0 + -28
-1r = 0 + -28

Combine like terms: 0 + -28 = -28
-1r = -28

Divide each side by '-1'.
r = 28

Simplifying
r = 28

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