7(5a+3-2a)=28

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Solution for 7(5a+3-2a)=28 equation:


Simplifying
7(5a + 3 + -2a) = 28

Reorder the terms:
7(3 + 5a + -2a) = 28

Combine like terms: 5a + -2a = 3a
7(3 + 3a) = 28
(3 * 7 + 3a * 7) = 28
(21 + 21a) = 28

Solving
21 + 21a = 28

Solving for variable 'a'.

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

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

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

Combine like terms: 28 + -21 = 7
21a = 7

Divide each side by '21'.
a = 0.3333333333

Simplifying
a = 0.3333333333

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