Gabrielle is 7 years younger than Mikhail. The sum of their ages is 65. What is Mikhail's age?
years old

Answer

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Answer

Substitute the first equation into the second, then solve for \(m\): \((m - 7) + m = 65\).

Steps

Step 1 ：Let Gabrielle's age be \(g\) and Mikhail's age be \(m\).

Step 2 ：Formulate the system of equations: \(g = m - 7\) and \(g + m = 65\).

Step 3 ：Substitute the first equation into the second, then solve for \(m\): \((m - 7) + m = 65\).