5(a+7)-7=9

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Solution for 5(a+7)-7=9 equation:


Simplifying
5(a + 7) + -7 = 9

Reorder the terms:
5(7 + a) + -7 = 9
(7 * 5 + a * 5) + -7 = 9
(35 + 5a) + -7 = 9

Reorder the terms:
35 + -7 + 5a = 9

Combine like terms: 35 + -7 = 28
28 + 5a = 9

Solving
28 + 5a = 9

Solving for variable 'a'.

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

Add '-28' to each side of the equation.
28 + -28 + 5a = 9 + -28

Combine like terms: 28 + -28 = 0
0 + 5a = 9 + -28
5a = 9 + -28

Combine like terms: 9 + -28 = -19
5a = -19

Divide each side by '5'.
a = -3.8

Simplifying
a = -3.8

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