6a+7=-18

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Solution for 6a+7=-18 equation: 


Simplifying
6a + 7 = -18

Reorder the terms:
7 + 6a = -18

Solving
7 + 6a = -18

Solving for variable 'a'.

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

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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