4b+20=7b+8

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Solution for 4b+20=7b+8 equation:


Simplifying
4b + 20 = 7b + 8

Reorder the terms:
20 + 4b = 7b + 8

Reorder the terms:
20 + 4b = 8 + 7b

Solving
20 + 4b = 8 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
20 + 4b + -7b = 8 + 7b + -7b

Combine like terms: 4b + -7b = -3b
20 + -3b = 8 + 7b + -7b

Combine like terms: 7b + -7b = 0
20 + -3b = 8 + 0
20 + -3b = 8

Add '-20' to each side of the equation.
20 + -20 + -3b = 8 + -20

Combine like terms: 20 + -20 = 0
0 + -3b = 8 + -20
-3b = 8 + -20

Combine like terms: 8 + -20 = -12
-3b = -12

Divide each side by '-3'.
b = 4

Simplifying
b = 4

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