4(3+9)+10a-4a=

Solution for 4(3+9)+10a-4a= equation:

Simplifying
4(3 + 9) + 10a + -4a = 0

Combine like terms: 3 + 9 = 12
4(12) + 10a + -4a = 0

Multiply 4 * 12
48 + 10a + -4a = 0

Combine like terms: 10a + -4a = 6a
48 + 6a = 0

Solving
48 + 6a = 0

Solving for variable 'a'.

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

Add '-48' to each side of the equation.
48 + -48 + 6a = 0 + -48

Combine like terms: 48 + -48 = 0
0 + 6a = 0 + -48
6a = 0 + -48

Combine like terms: 0 + -48 = -48
6a = -48

Divide each side by '6'.
a = -8

Simplifying
a = -8