7-2(7a+2)=-81

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Solution for 7-2(7a+2)=-81 equation:


Simplifying
7 + -2(7a + 2) = -81

Reorder the terms:
7 + -2(2 + 7a) = -81
7 + (2 * -2 + 7a * -2) = -81
7 + (-4 + -14a) = -81

Combine like terms: 7 + -4 = 3
3 + -14a = -81

Solving
3 + -14a = -81

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + -14a = -81 + -3

Combine like terms: 3 + -3 = 0
0 + -14a = -81 + -3
-14a = -81 + -3

Combine like terms: -81 + -3 = -84
-14a = -84

Divide each side by '-14'.
a = 6

Simplifying
a = 6

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