9*9+b=15*15

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Solution for 9*9+b=15*15 equation: 


Simplifying
9 * 9 + b = 15 * 15

Multiply 9 * 9
81 + b = 15 * 15

Multiply 15 * 15
81 + b = 225

Solving
81 + b = 225

Solving for variable 'b'.

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

Add '-81' to each side of the equation.
81 + -81 + b = 225 + -81

Combine like terms: 81 + -81 = 0
0 + b = 225 + -81
b = 225 + -81

Combine like terms: 225 + -81 = 144
b = 144

Simplifying
b = 144

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