7b+3=2(2b-9)

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Solution for 7b+3=2(2b-9) equation:


Simplifying
7b + 3 = 2(2b + -9)

Reorder the terms:
3 + 7b = 2(2b + -9)

Reorder the terms:
3 + 7b = 2(-9 + 2b)
3 + 7b = (-9 * 2 + 2b * 2)
3 + 7b = (-18 + 4b)

Solving
3 + 7b = -18 + 4b

Solving for variable 'b'.

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

Add '-4b' to each side of the equation.
3 + 7b + -4b = -18 + 4b + -4b

Combine like terms: 7b + -4b = 3b
3 + 3b = -18 + 4b + -4b

Combine like terms: 4b + -4b = 0
3 + 3b = -18 + 0
3 + 3b = -18

Add '-3' to each side of the equation.
3 + -3 + 3b = -18 + -3

Combine like terms: 3 + -3 = 0
0 + 3b = -18 + -3
3b = -18 + -3

Combine like terms: -18 + -3 = -21
3b = -21

Divide each side by '3'.
b = -7

Simplifying
b = -7

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