.5(b-3)=2.1

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Solution for .5(b-3)=2.1 equation:


Simplifying
0.5(b + -3) = 2.1

Reorder the terms:
0.5(-3 + b) = 2.1
(-3 * 0.5 + b * 0.5) = 2.1
(-1.5 + 0.5b) = 2.1

Solving
-1.5 + 0.5b = 2.1

Solving for variable 'b'.

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

Add '1.5' to each side of the equation.
-1.5 + 1.5 + 0.5b = 2.1 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 0.5b = 2.1 + 1.5
0.5b = 2.1 + 1.5

Combine like terms: 2.1 + 1.5 = 3.6
0.5b = 3.6

Divide each side by '0.5'.
b = 7.2

Simplifying
b = 7.2

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