3-15=b-45

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Solution for 3-15=b-45 equation:


Simplifying
3 + -15 = b + -45

Combine like terms: 3 + -15 = -12
-12 = b + -45

Reorder the terms:
-12 = -45 + b

Solving
-12 = -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.
-12 + -1b = -45 + b + -1b

Combine like terms: b + -1b = 0
-12 + -1b = -45 + 0
-12 + -1b = -45

Add '12' to each side of the equation.
-12 + 12 + -1b = -45 + 12

Combine like terms: -12 + 12 = 0
0 + -1b = -45 + 12
-1b = -45 + 12

Combine like terms: -45 + 12 = -33
-1b = -33

Divide each side by '-1'.
b = 33

Simplifying
b = 33

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