45=13-8a

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Solution for 45=13-8a equation:


Simplifying
45 = 13 + -8a

Solving
45 = 13 + -8a

Solving for variable 'a'.

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

Add '8a' to each side of the equation.
45 + 8a = 13 + -8a + 8a

Combine like terms: -8a + 8a = 0
45 + 8a = 13 + 0
45 + 8a = 13

Add '-45' to each side of the equation.
45 + -45 + 8a = 13 + -45

Combine like terms: 45 + -45 = 0
0 + 8a = 13 + -45
8a = 13 + -45

Combine like terms: 13 + -45 = -32
8a = -32

Divide each side by '8'.
a = -4

Simplifying
a = -4

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