4b+2=9b-18

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Solution for 4b+2=9b-18 equation:


Simplifying
4b + 2 = 9b + -18

Reorder the terms:
2 + 4b = 9b + -18

Reorder the terms:
2 + 4b = -18 + 9b

Solving
2 + 4b = -18 + 9b

Solving for variable 'b'.

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

Add '-9b' to each side of the equation.
2 + 4b + -9b = -18 + 9b + -9b

Combine like terms: 4b + -9b = -5b
2 + -5b = -18 + 9b + -9b

Combine like terms: 9b + -9b = 0
2 + -5b = -18 + 0
2 + -5b = -18

Add '-2' to each side of the equation.
2 + -2 + -5b = -18 + -2

Combine like terms: 2 + -2 = 0
0 + -5b = -18 + -2
-5b = -18 + -2

Combine like terms: -18 + -2 = -20
-5b = -20

Divide each side by '-5'.
b = 4

Simplifying
b = 4

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