3r+8=4(r+4)

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Solution for 3r+8=4(r+4) equation:


Simplifying
3r + 8 = 4(r + 4)

Reorder the terms:
8 + 3r = 4(r + 4)

Reorder the terms:
8 + 3r = 4(4 + r)
8 + 3r = (4 * 4 + r * 4)
8 + 3r = (16 + 4r)

Solving
8 + 3r = 16 + 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.
8 + 3r + -4r = 16 + 4r + -4r

Combine like terms: 3r + -4r = -1r
8 + -1r = 16 + 4r + -4r

Combine like terms: 4r + -4r = 0
8 + -1r = 16 + 0
8 + -1r = 16

Add '-8' to each side of the equation.
8 + -8 + -1r = 16 + -8

Combine like terms: 8 + -8 = 0
0 + -1r = 16 + -8
-1r = 16 + -8

Combine like terms: 16 + -8 = 8
-1r = 8

Divide each side by '-1'.
r = -8

Simplifying
r = -8

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