Solve 21:6=42:x - ScanMath

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Type your math problem... 21:6=42:x

x

Question

Solve the equation

x = 12

Evaluate

21 \div 6 = 42 \div x

Find the domain

21 \div 6 = 42 \div x, x \neq = 0

Divide the numbers

3.5 = 42 \div x

Rewrite the expression

3.5 = \frac{42}{x}

Swap the sides of the equation

\frac{42}{x} = 3.5

Convert the expressions

\frac{42}{x} = \frac{7}{2}

Rewrite the expression

x = \frac{42 \times 2}{7}

Divide the terms

x = 12

Check if the solution is in the defined range

x = 12, x \neq = 0

Solution

x = 12

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