Solve for x
x\neq 0
y=90
Solve for y
y=90
x\neq 0
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Linear Equation
5 problems similar to:
\frac { x } { \frac { x } { 3 y } + \frac { x } { 30 } } = 27
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\frac{x}{\frac{10x}{30y}+\frac{xy}{30y}}=27
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 3y and 30 is 30y. Multiply \frac{x}{3y} times \frac{10}{10}. Multiply \frac{x}{30} times \frac{y}{y}.
\frac{x}{\frac{10x+xy}{30y}}=27
Since \frac{10x}{30y} and \frac{xy}{30y} have the same denominator, add them by adding their numerators.
\frac{x\times 30y}{10x+xy}=27
Divide x by \frac{10x+xy}{30y} by multiplying x by the reciprocal of \frac{10x+xy}{30y}.
x\times 30y=27x\left(y+10\right)
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x\left(y+10\right).
30xy=27x\left(y+10\right)
Reorder the terms.
30xy=27xy+270x
Use the distributive property to multiply 27x by y+10.
30xy-27xy=270x
Subtract 27xy from both sides.
3xy=270x
Combine 30xy and -27xy to get 3xy.
3xy-270x=0
Subtract 270x from both sides.
\left(3y-270\right)x=0
Combine all terms containing x.
x=0
Divide 0 by 3y-270.
x\in \emptyset
Variable x cannot be equal to 0.
\frac{x}{\frac{10x}{30y}+\frac{xy}{30y}}=27
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 3y and 30 is 30y. Multiply \frac{x}{3y} times \frac{10}{10}. Multiply \frac{x}{30} times \frac{y}{y}.
\frac{x}{\frac{10x+xy}{30y}}=27
Since \frac{10x}{30y} and \frac{xy}{30y} have the same denominator, add them by adding their numerators.
\frac{x\times 30y}{10x+xy}=27
Variable y cannot be equal to 0 since division by zero is not defined. Divide x by \frac{10x+xy}{30y} by multiplying x by the reciprocal of \frac{10x+xy}{30y}.
\frac{30xy}{x\left(y+10\right)}=27
Factor the expressions that are not already factored in \frac{x\times 30y}{10x+xy}.
\frac{30y}{y+10}=27
Cancel out x in both numerator and denominator.
30y=27\left(y+10\right)
Variable y cannot be equal to -10 since division by zero is not defined. Multiply both sides of the equation by y+10.
30y=27y+270
Use the distributive property to multiply 27 by y+10.
30y-27y=270
Subtract 27y from both sides.
3y=270
Combine 30y and -27y to get 3y.
y=\frac{270}{3}
Divide both sides by 3.
y=90
Divide 270 by 3 to get 90.
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