Solve a - (10 - a) = 30 - ScanMath

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Type your math problem... a - (10 - a) = 30

x

Question

Solve the equation

a = 20

Evaluate

a - (10 - a) = 30

Subtract the terms

More Steps

Evaluate

a - (10 - a)

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

a - 10 + a

Add the terms

More Steps

Evaluate

a + a

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

(1 + 1) a

Add the numbers

2 a

2 a - 10

2 a - 10 = 30

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

2 a = 30 + 10

Add the numbers

2 a = 40

Divide both sides

\frac{2 a}{2} = \frac{40}{2}

Divide the numbers

a = \frac{40}{2}

Solution

More Steps

Evaluate

\frac{40}{2}

Reduce the numbers

\frac{20}{1}

Calculate

20

a = 20

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