.7b+6+.3b=6.8

Solution for .7b+6+.3b=6.8 equation:

Simplifying
0.7b + 6 + 0.3b = 6.8

Reorder the terms:
6 + 0.7b + 0.3b = 6.8

Combine like terms: 0.7b + 0.3b = 1b
6 + 1b = 6.8

Solving
6 + 1b = 6.8

Solving for variable 'b'.

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

Add '-6' to each side of the equation.
6 + -6 + 1b = 6.8 + -6

Combine like terms: 6 + -6 = 0
0 + 1b = 6.8 + -6
1b = 6.8 + -6

Combine like terms: 6.8 + -6 = 0.8
1b = 0.8

Divide each side by '1'.
b = 0.8

Simplifying
b = 0.8