3(15b-7)=3b-9

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Solution for 3(15b-7)=3b-9 equation:


Simplifying
3(15b + -7) = 3b + -9

Reorder the terms:
3(-7 + 15b) = 3b + -9
(-7 * 3 + 15b * 3) = 3b + -9
(-21 + 45b) = 3b + -9

Reorder the terms:
-21 + 45b = -9 + 3b

Solving
-21 + 45b = -9 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-21 + 45b + -3b = -9 + 3b + -3b

Combine like terms: 45b + -3b = 42b
-21 + 42b = -9 + 3b + -3b

Combine like terms: 3b + -3b = 0
-21 + 42b = -9 + 0
-21 + 42b = -9

Add '21' to each side of the equation.
-21 + 21 + 42b = -9 + 21

Combine like terms: -21 + 21 = 0
0 + 42b = -9 + 21
42b = -9 + 21

Combine like terms: -9 + 21 = 12
42b = 12

Divide each side by '42'.
b = 0.2857142857

Simplifying
b = 0.2857142857

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