a-(3+7b)=

Solution for a-(3+7b)= equation:

Simplifying
a + -1(3 + 7b) = 0
a + (3 * -1 + 7b * -1) = 0
a + (-3 + -7b) = 0

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

Solving
-3 + a + -7b = 0

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + a + 3 + -7b = 0 + 3

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

Combine like terms: -3 + 3 = 0
0 + a + -7b = 0 + 3
a + -7b = 0 + 3

Combine like terms: 0 + 3 = 3
a + -7b = 3

Add '7b' to each side of the equation.
a + -7b + 7b = 3 + 7b

Combine like terms: -7b + 7b = 0
a + 0 = 3 + 7b
a = 3 + 7b

Simplifying
a = 3 + 7b