3b-2b+7=21

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Solution for 3b-2b+7=21 equation:


Simplifying
3b + -2b + 7 = 21

Reorder the terms:
7 + 3b + -2b = 21

Combine like terms: 3b + -2b = 1b
7 + 1b = 21

Solving
7 + 1b = 21

Solving for variable 'b'.

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

Add '-7' to each side of the equation.
7 + -7 + 1b = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 1b = 21 + -7
1b = 21 + -7

Combine like terms: 21 + -7 = 14
1b = 14

Divide each side by '1'.
b = 14

Simplifying
b = 14

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