4a+-7(a+2)+13=

Solution for 4a+-7(a+2)+13= equation:

Simplifying
4a + -7(a + 2) + 13 = 0

Reorder the terms:
4a + -7(2 + a) + 13 = 0
4a + (2 * -7 + a * -7) + 13 = 0
4a + (-14 + -7a) + 13 = 0

Reorder the terms:
-14 + 13 + 4a + -7a = 0

Combine like terms: -14 + 13 = -1
-1 + 4a + -7a = 0

Combine like terms: 4a + -7a = -3a
-1 + -3a = 0

Solving
-1 + -3a = 0

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + -3a = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3a = 0 + 1
-3a = 0 + 1

Combine like terms: 0 + 1 = 1
-3a = 1

Divide each side by '-3'.
a = -0.3333333333

Simplifying
a = -0.3333333333