.7b+.3b=.8

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Solution for .7b+.3b=.8 equation: 


Simplifying
0.7b + 0.3b = 0.8

Combine like terms: 0.7b + 0.3b = 1b
1b = 0.8

Solving
1b = 0.8

Solving for variable 'b'.

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

Divide each side by '1'.
b = 0.8

Simplifying
b = 0.8

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