## Find the value of X

\$\begingroup\$ Your expression for \$x\$, Soph, comes down to \$abc/(a+b+c)\$. So, if it's true that \$a=3\$, \$b=5\$, and \$c=7\$, then the value you get for \$x\$ is quite wrong.

## Solving for a value of x that makes the equation a true statement

For the equations like this, you have to find the real roots or use trial and error method to get the variable value. The possible values of x are -2 and 3. 4. What is the standard form of an

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## Solve for X

If four years later, the sum of their ages will be 56 years, then form an equation and solve for x. Solution: The Rooney and Herald's age is 5x and 7x. The sum of their ages after 4 years = 56.

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