(7-b)+.3b=.5

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Solution for (7-b)+.3b=.5 equation:


Simplifying
(7 + -1b) + 0.3b = 0.5

Remove parenthesis around (7 + -1b)
7 + -1b + 0.3b = 0.5

Combine like terms: -1b + 0.3b = -0.7b
7 + -0.7b = 0.5

Solving
7 + -0.7b = 0.5

Solving for variable 'b'.

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

Add '-7' to each side of the equation.
7 + -7 + -0.7b = 0.5 + -7

Combine like terms: 7 + -7 = 0
0 + -0.7b = 0.5 + -7
-0.7b = 0.5 + -7

Combine like terms: 0.5 + -7 = -6.5
-0.7b = -6.5

Divide each side by '-0.7'.
b = 9.285714286

Simplifying
b = 9.285714286

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