150=20*30+b

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Solution for 150=20*30+b equation:


Simplifying
150 = 20 * 30 + b

Multiply 20 * 30
150 = 600 + b

Solving
150 = 600 + 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.
150 + -1b = 600 + b + -1b

Combine like terms: b + -1b = 0
150 + -1b = 600 + 0
150 + -1b = 600

Add '-150' to each side of the equation.
150 + -150 + -1b = 600 + -150

Combine like terms: 150 + -150 = 0
0 + -1b = 600 + -150
-1b = 600 + -150

Combine like terms: 600 + -150 = 450
-1b = 450

Divide each side by '-1'.
b = -450

Simplifying
b = -450

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