-4=8+a+3a

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Solution for -4=8+a+3a equation:


Simplifying
-4 = 8 + a + 3a

Combine like terms: a + 3a = 4a
-4 = 8 + 4a

Solving
-4 = 8 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-4 + -4a = 8 + 4a + -4a

Combine like terms: 4a + -4a = 0
-4 + -4a = 8 + 0
-4 + -4a = 8

Add '4' to each side of the equation.
-4 + 4 + -4a = 8 + 4

Combine like terms: -4 + 4 = 0
0 + -4a = 8 + 4
-4a = 8 + 4

Combine like terms: 8 + 4 = 12
-4a = 12

Divide each side by '-4'.
a = -3

Simplifying
a = -3

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