1.3(-b)+3.7b=-5.2

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Solution for 1.3(-b)+3.7b=-5.2 equation: 


Simplifying
1.3(-1b) + 3.7b = -5.2

Remove parenthesis around (-1b)
1.3 * -1b + 3.7b = -5.2

Multiply 1.3 * -1
-1.3b + 3.7b = -5.2

Combine like terms: -1.3b + 3.7b = 2.4b
2.4b = -5.2

Solving
2.4b = -5.2

Solving for variable 'b'.

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

Divide each side by '2.4'.
b = -2.166666667

Simplifying
b = -2.166666667

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