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

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


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

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

Remove parenthesis around (5 + a)
-21 + 7a = 5 + a

Solving
-21 + 7a = 5 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-21 + 7a + -1a = 5 + a + -1a

Combine like terms: 7a + -1a = 6a
-21 + 6a = 5 + a + -1a

Combine like terms: a + -1a = 0
-21 + 6a = 5 + 0
-21 + 6a = 5

Add '21' to each side of the equation.
-21 + 21 + 6a = 5 + 21

Combine like terms: -21 + 21 = 0
0 + 6a = 5 + 21
6a = 5 + 21

Combine like terms: 5 + 21 = 26
6a = 26

Divide each side by '6'.
a = 4.333333333

Simplifying
a = 4.333333333

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