3(a+7)-4=

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Solution for 3(a+7)-4= equation:


Simplifying
3(a + 7) + -4 = 0

Reorder the terms:
3(7 + a) + -4 = 0
(7 * 3 + a * 3) + -4 = 0
(21 + 3a) + -4 = 0

Reorder the terms:
21 + -4 + 3a = 0

Combine like terms: 21 + -4 = 17
17 + 3a = 0

Solving
17 + 3a = 0

Solving for variable 'a'.

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

Add '-17' to each side of the equation.
17 + -17 + 3a = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 3a = 0 + -17
3a = 0 + -17

Combine like terms: 0 + -17 = -17
3a = -17

Divide each side by '3'.
a = -5.666666667

Simplifying
a = -5.666666667

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