4(b-10)=20

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Solution for 4(b-10)=20 equation: 


Simplifying
4(b + -10) = 20

Reorder the terms:
4(-10 + b) = 20
(-10 * 4 + b * 4) = 20
(-40 + 4b) = 20

Solving
-40 + 4b = 20

Solving for variable 'b'.

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

Add '40' to each side of the equation.
-40 + 40 + 4b = 20 + 40

Combine like terms: -40 + 40 = 0
0 + 4b = 20 + 40
4b = 20 + 40

Combine like terms: 20 + 40 = 60
4b = 60

Divide each side by '4'.
b = 15

Simplifying
b = 15

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