3-.2b=.3b-7

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Solution for 3-.2b=.3b-7 equation:


Simplifying
3 + -0.2b = 0.3b + -7

Reorder the terms:
3 + -0.2b = -7 + 0.3b

Solving
3 + -0.2b = -7 + 0.3b

Solving for variable 'b'.

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

Add '-0.3b' to each side of the equation.
3 + -0.2b + -0.3b = -7 + 0.3b + -0.3b

Combine like terms: -0.2b + -0.3b = -0.5b
3 + -0.5b = -7 + 0.3b + -0.3b

Combine like terms: 0.3b + -0.3b = 0.0
3 + -0.5b = -7 + 0.0
3 + -0.5b = -7

Add '-3' to each side of the equation.
3 + -3 + -0.5b = -7 + -3

Combine like terms: 3 + -3 = 0
0 + -0.5b = -7 + -3
-0.5b = -7 + -3

Combine like terms: -7 + -3 = -10
-0.5b = -10

Divide each side by '-0.5'.
b = 20

Simplifying
b = 20

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