28=7(3+b)

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Solution for 28=7(3+b) equation:


Simplifying
28 = 7(3 + b)
28 = (3 * 7 + b * 7)
28 = (21 + 7b)

Solving
28 = 21 + 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.
28 + -7b = 21 + 7b + -7b

Combine like terms: 7b + -7b = 0
28 + -7b = 21 + 0
28 + -7b = 21

Add '-28' to each side of the equation.
28 + -28 + -7b = 21 + -28

Combine like terms: 28 + -28 = 0
0 + -7b = 21 + -28
-7b = 21 + -28

Combine like terms: 21 + -28 = -7
-7b = -7

Divide each side by '-7'.
b = 1

Simplifying
b = 1

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