2(2.5b-9)+66=-7

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Solution for 2(2.5b-9)+66=-7 equation: 


Simplifying
2(2.5b + -9) + 66 = -7

Reorder the terms:
2(-9 + 2.5b) + 66 = -7
(-9 * 2 + 2.5b * 2) + 66 = -7
(-18 + 5b) + 66 = -7

Reorder the terms:
-18 + 66 + 5b = -7

Combine like terms: -18 + 66 = 48
48 + 5b = -7

Solving
48 + 5b = -7

Solving for variable 'b'.

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

Add '-48' to each side of the equation.
48 + -48 + 5b = -7 + -48

Combine like terms: 48 + -48 = 0
0 + 5b = -7 + -48
5b = -7 + -48

Combine like terms: -7 + -48 = -55
5b = -55

Divide each side by '5'.
b = -11

Simplifying
b = -11

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