45=0.90*b

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Solution for 45=0.90*b equation:


Simplifying
45 = 0.90b

Solving
45 = 0.90b

Solving for variable 'b'.

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

Add '-0.90b' to each side of the equation.
45 + -0.90b = 0.90b + -0.90b

Combine like terms: 0.90b + -0.90b = 0.00
45 + -0.90b = 0.00

Add '-45' to each side of the equation.
45 + -45 + -0.90b = 0.00 + -45

Combine like terms: 45 + -45 = 0
0 + -0.90b = 0.00 + -45
-0.90b = 0.00 + -45

Combine like terms: 0.00 + -45 = -45
-0.90b = -45

Divide each side by '-0.90'.
b = 50

Simplifying
b = 50

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