2(7b-6)-4=21

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Solution for 2(7b-6)-4=21 equation:


Simplifying
2(7b + -6) + -4 = 21

Reorder the terms:
2(-6 + 7b) + -4 = 21
(-6 * 2 + 7b * 2) + -4 = 21
(-12 + 14b) + -4 = 21

Reorder the terms:
-12 + -4 + 14b = 21

Combine like terms: -12 + -4 = -16
-16 + 14b = 21

Solving
-16 + 14b = 21

Solving for variable 'b'.

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

Add '16' to each side of the equation.
-16 + 16 + 14b = 21 + 16

Combine like terms: -16 + 16 = 0
0 + 14b = 21 + 16
14b = 21 + 16

Combine like terms: 21 + 16 = 37
14b = 37

Divide each side by '14'.
b = 2.642857143

Simplifying
b = 2.642857143

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