100[0.07(y+6)]=

Solution for 100[0.07(y+6)]= equation:

Simplifying
100[0.07(y + 6)] = 0

Reorder the terms:
100[0.07(6 + y)] = 0
100[(6 * 0.07 + y * 0.07)] = 0
100[(0.42 + 0.07y)] = 0
[0.42 * 100 + 0.07y * 100] = 0
[42 + 7y] = 0

Solving
42 + 7y = 0

Solving for variable 'y'.

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

Add '-42' to each side of the equation.
42 + -42 + 7y = 0 + -42

Combine like terms: 42 + -42 = 0
0 + 7y = 0 + -42
7y = 0 + -42

Combine like terms: 0 + -42 = -42
7y = -42

Divide each side by '7'.
y = -6

Simplifying
y = -6