3a+6-7a=

Solution for 3a+6-7a= equation:

Simplifying
3a + 6 + -7a = 0

Reorder the terms:
6 + 3a + -7a = 0

Combine like terms: 3a + -7a = -4a
6 + -4a = 0

Solving
6 + -4a = 0

Solving for variable 'a'.

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

Add '-6' to each side of the equation.
6 + -6 + -4a = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -4a = 0 + -6
-4a = 0 + -6

Combine like terms: 0 + -6 = -6
-4a = -6

Divide each side by '-4'.
a = 1.5

Simplifying
a = 1.5