4.5-(-b)=0.4

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Solution for 4.5-(-b)=0.4 equation:


Simplifying
4.5 + -1(-1b) = 0.4

Remove parenthesis around (-1b)
4.5 + -1 * -1b = 0.4

Multiply -1 * -1
4.5 + 1b = 0.4

Solving
4.5 + 1b = 0.4

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 + 1b = 0.4 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + 1b = 0.4 + -4.5
1b = 0.4 + -4.5

Combine like terms: 0.4 + -4.5 = -4.1
1b = -4.1

Divide each side by '1'.
b = -4.1

Simplifying
b = -4.1

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