-73=4-7a

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Solution for -73=4-7a equation:


Simplifying
-73 = 4 + -7a

Solving
-73 = 4 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
-73 + 7a = 4 + -7a + 7a

Combine like terms: -7a + 7a = 0
-73 + 7a = 4 + 0
-73 + 7a = 4

Add '73' to each side of the equation.
-73 + 73 + 7a = 4 + 73

Combine like terms: -73 + 73 = 0
0 + 7a = 4 + 73
7a = 4 + 73

Combine like terms: 4 + 73 = 77
7a = 77

Divide each side by '7'.
a = 11

Simplifying
a = 11

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