21+4b+(17)+(-12)=

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Solution for 21+4b+(17)+(-12)= equation:


Simplifying
21 + 4b + (17) + (-12) = 0
21 + 4b + 17 + (-12) = 0
21 + 4b + 17 + -12 = 0

Reorder the terms:
21 + 17 + -12 + 4b = 0

Combine like terms: 21 + 17 = 38
38 + -12 + 4b = 0

Combine like terms: 38 + -12 = 26
26 + 4b = 0

Solving
26 + 4b = 0

Solving for variable 'b'.

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

Add '-26' to each side of the equation.
26 + -26 + 4b = 0 + -26

Combine like terms: 26 + -26 = 0
0 + 4b = 0 + -26
4b = 0 + -26

Combine like terms: 0 + -26 = -26
4b = -26

Divide each side by '4'.
b = -6.5

Simplifying
b = -6.5

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