3b+9=-2+6.9(b+8)

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Solution for 3b+9=-2+6.9(b+8) equation:


Simplifying
3b + 9 = -2 + 6.9(b + 8)

Reorder the terms:
9 + 3b = -2 + 6.9(b + 8)

Reorder the terms:
9 + 3b = -2 + 6.9(8 + b)
9 + 3b = -2 + (8 * 6.9 + b * 6.9)
9 + 3b = -2 + (55.2 + 6.9b)

Combine like terms: -2 + 55.2 = 53.2
9 + 3b = 53.2 + 6.9b

Solving
9 + 3b = 53.2 + 6.9b

Solving for variable 'b'.

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

Add '-6.9b' to each side of the equation.
9 + 3b + -6.9b = 53.2 + 6.9b + -6.9b

Combine like terms: 3b + -6.9b = -3.9b
9 + -3.9b = 53.2 + 6.9b + -6.9b

Combine like terms: 6.9b + -6.9b = 0.0
9 + -3.9b = 53.2 + 0.0
9 + -3.9b = 53.2

Add '-9' to each side of the equation.
9 + -9 + -3.9b = 53.2 + -9

Combine like terms: 9 + -9 = 0
0 + -3.9b = 53.2 + -9
-3.9b = 53.2 + -9

Combine like terms: 53.2 + -9 = 44.2
-3.9b = 44.2

Divide each side by '-3.9'.
b = -11.33333333

Simplifying
b = -11.33333333

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