.83(a+4)=-18

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Solution for .83(a+4)=-18 equation:


Simplifying
0.83(a + 4) = -18

Reorder the terms:
0.83(4 + a) = -18
(4 * 0.83 + a * 0.83) = -18
(3.32 + 0.83a) = -18

Solving
3.32 + 0.83a = -18

Solving for variable 'a'.

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

Add '-3.32' to each side of the equation.
3.32 + -3.32 + 0.83a = -18 + -3.32

Combine like terms: 3.32 + -3.32 = 0.00
0.00 + 0.83a = -18 + -3.32
0.83a = -18 + -3.32

Combine like terms: -18 + -3.32 = -21.32
0.83a = -21.32

Divide each side by '0.83'.
a = -25.68674699

Simplifying
a = -25.68674699

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