3a-7(3-a)=5

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


Simplifying
3a + -7(3 + -1a) = 5
3a + (3 * -7 + -1a * -7) = 5
3a + (-21 + 7a) = 5

Reorder the terms:
-21 + 3a + 7a = 5

Combine like terms: 3a + 7a = 10a
-21 + 10a = 5

Solving
-21 + 10a = 5

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 + 10a = 5 + 21

Combine like terms: -21 + 21 = 0
0 + 10a = 5 + 21
10a = 5 + 21

Combine like terms: 5 + 21 = 26
10a = 26

Divide each side by '10'.
a = 2.6

Simplifying
a = 2.6

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