7-5a=a-18

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Solution for 7-5a=a-18 equation:


Simplifying
7 + -5a = a + -18

Reorder the terms:
7 + -5a = -18 + a

Solving
7 + -5a = -18 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
7 + -5a + -1a = -18 + a + -1a

Combine like terms: -5a + -1a = -6a
7 + -6a = -18 + a + -1a

Combine like terms: a + -1a = 0
7 + -6a = -18 + 0
7 + -6a = -18

Add '-7' to each side of the equation.
7 + -7 + -6a = -18 + -7

Combine like terms: 7 + -7 = 0
0 + -6a = -18 + -7
-6a = -18 + -7

Combine like terms: -18 + -7 = -25
-6a = -25

Divide each side by '-6'.
a = 4.166666667

Simplifying
a = 4.166666667

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