4r+4(r+3)=428

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Solution for 4r+4(r+3)=428 equation:


Simplifying
4r + 4(r + 3) = 428

Reorder the terms:
4r + 4(3 + r) = 428
4r + (3 * 4 + r * 4) = 428
4r + (12 + 4r) = 428

Reorder the terms:
12 + 4r + 4r = 428

Combine like terms: 4r + 4r = 8r
12 + 8r = 428

Solving
12 + 8r = 428

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + 8r = 428 + -12

Combine like terms: 12 + -12 = 0
0 + 8r = 428 + -12
8r = 428 + -12

Combine like terms: 428 + -12 = 416
8r = 416

Divide each side by '8'.
r = 52

Simplifying
r = 52

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