-9=5(-3)+b

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Solution for -9=5(-3)+b equation:


Simplifying
-9 = 5(-3) + b

Multiply 5 * -3
-9 = -15 + b

Solving
-9 = -15 + 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.
-9 + -1b = -15 + b + -1b

Combine like terms: b + -1b = 0
-9 + -1b = -15 + 0
-9 + -1b = -15

Add '9' to each side of the equation.
-9 + 9 + -1b = -15 + 9

Combine like terms: -9 + 9 = 0
0 + -1b = -15 + 9
-1b = -15 + 9

Combine like terms: -15 + 9 = -6
-1b = -6

Divide each side by '-1'.
b = 6

Simplifying
b = 6

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