9(0.4b+0.5)=11.7

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Solution for 9(0.4b+0.5)=11.7 equation:


Simplifying
9(0.4b + 0.5) = 11.7

Reorder the terms:
9(0.5 + 0.4b) = 11.7
(0.5 * 9 + 0.4b * 9) = 11.7
(4.5 + 3.6b) = 11.7

Solving
4.5 + 3.6b = 11.7

Solving for variable 'b'.

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

Add '-4.5' to each side of the equation.
4.5 + -4.5 + 3.6b = 11.7 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + 3.6b = 11.7 + -4.5
3.6b = 11.7 + -4.5

Combine like terms: 11.7 + -4.5 = 7.2
3.6b = 7.2

Divide each side by '3.6'.
b = 2

Simplifying
b = 2

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