4+B*1(-2)=12

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Solution for 4+B*1(-2)=12 equation: 


Simplifying
4 + B * 1(-2) = 12

Reorder the terms for easier multiplication:
4 + 1 * -2B = 12

Multiply 1 * -2
4 + -2B = 12

Solving
4 + -2B = 12

Solving for variable 'B'.

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

Add '-4' to each side of the equation.
4 + -4 + -2B = 12 + -4

Combine like terms: 4 + -4 = 0
0 + -2B = 12 + -4
-2B = 12 + -4

Combine like terms: 12 + -4 = 8
-2B = 8

Divide each side by '-2'.
B = -4

Simplifying
B = -4

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