40=b-(-45)

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Solution for 40=b-(-45) equation:


Simplifying
40 = b + -1(-45)

Multiply -1 * -45
40 = b + 45

Reorder the terms:
40 = 45 + b

Solving
40 = 45 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
40 + -1b = 45 + b + -1b

Combine like terms: b + -1b = 0
40 + -1b = 45 + 0
40 + -1b = 45

Add '-40' to each side of the equation.
40 + -40 + -1b = 45 + -40

Combine like terms: 40 + -40 = 0
0 + -1b = 45 + -40
-1b = 45 + -40

Combine like terms: 45 + -40 = 5
-1b = 5

Divide each side by '-1'.
b = -5

Simplifying
b = -5

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