7=1(9)+b

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Solution for 7=1(9)+b equation:


Simplifying
7 = 1(9) + b

Multiply 1 * 9
7 = 9 + b

Solving
7 = 9 + 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.
7 + -1b = 9 + b + -1b

Combine like terms: b + -1b = 0
7 + -1b = 9 + 0
7 + -1b = 9

Add '-7' to each side of the equation.
7 + -7 + -1b = 9 + -7

Combine like terms: 7 + -7 = 0
0 + -1b = 9 + -7
-1b = 9 + -7

Combine like terms: 9 + -7 = 2
-1b = 2

Divide each side by '-1'.
b = -2

Simplifying
b = -2

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