Solve b - (7 - b) = 21 - ScanMath

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Type your math problem... b - (7 - b) = 21

x

Question

Solve the equation

b = 14

Evaluate

b - (7 - b) = 21

Subtract the terms

More Steps

Evaluate

b - (7 - b)

If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses

b - 7 + b

Add the terms

More Steps

Evaluate

b + b

Collect like terms by calculating the sum or difference of their coefficients

(1 + 1) b

Add the numbers

2 b

2 b - 7

2 b - 7 = 21

Move the constant to the right-hand side and change its sign

2 b = 21 + 7

Add the numbers

2 b = 28

Divide both sides

\frac{2 b}{2} = \frac{28}{2}

Divide the numbers

b = \frac{28}{2}

Solution

More Steps

Evaluate

\frac{28}{2}

Reduce the numbers

\frac{14}{1}

Calculate

14

b = 14

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