125=(25)(7)+b

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Solution for 125=(25)(7)+b equation:


Simplifying
125 = (25)(7) + b

Multiply 25 * 7
125 = 175 + b

Solving
125 = 175 + 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.
125 + -1b = 175 + b + -1b

Combine like terms: b + -1b = 0
125 + -1b = 175 + 0
125 + -1b = 175

Add '-125' to each side of the equation.
125 + -125 + -1b = 175 + -125

Combine like terms: 125 + -125 = 0
0 + -1b = 175 + -125
-1b = 175 + -125

Combine like terms: 175 + -125 = 50
-1b = 50

Divide each side by '-1'.
b = -50

Simplifying
b = -50

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