0=4+2(-a-7)

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Solution for 0=4+2(-a-7) equation:


Simplifying
0 = 4 + 2(-1a + -7)

Reorder the terms:
0 = 4 + 2(-7 + -1a)
0 = 4 + (-7 * 2 + -1a * 2)
0 = 4 + (-14 + -2a)

Combine like terms: 4 + -14 = -10
0 = -10 + -2a

Solving
0 = -10 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
0 + 2a = -10 + -2a + 2a
Remove the zero:
2a = -10 + -2a + 2a

Combine like terms: -2a + 2a = 0
2a = -10 + 0
2a = -10

Divide each side by '2'.
a = -5

Simplifying
a = -5

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