5=-3a-7

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Solution for 5=-3a-7 equation:


Simplifying
5 = -3a + -7

Reorder the terms:
5 = -7 + -3a

Solving
5 = -7 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
5 + 3a = -7 + -3a + 3a

Combine like terms: -3a + 3a = 0
5 + 3a = -7 + 0
5 + 3a = -7

Add '-5' to each side of the equation.
5 + -5 + 3a = -7 + -5

Combine like terms: 5 + -5 = 0
0 + 3a = -7 + -5
3a = -7 + -5

Combine like terms: -7 + -5 = -12
3a = -12

Divide each side by '3'.
a = -4

Simplifying
a = -4

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