28=3(7a+5)

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Solution for 28=3(7a+5) equation:


Simplifying
28 = 3(7a + 5)

Reorder the terms:
28 = 3(5 + 7a)
28 = (5 * 3 + 7a * 3)
28 = (15 + 21a)

Solving
28 = 15 + 21a

Solving for variable 'a'.

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

Add '-21a' to each side of the equation.
28 + -21a = 15 + 21a + -21a

Combine like terms: 21a + -21a = 0
28 + -21a = 15 + 0
28 + -21a = 15

Add '-28' to each side of the equation.
28 + -28 + -21a = 15 + -28

Combine like terms: 28 + -28 = 0
0 + -21a = 15 + -28
-21a = 15 + -28

Combine like terms: 15 + -28 = -13
-21a = -13

Divide each side by '-21'.
a = 0.619047619

Simplifying
a = 0.619047619

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