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O ALGEBRAIC EQUATIONS AND INEQUALITIES
Solving a word problem with two unknowns using a linear equa...
Gabrielle is 10 years older than Mikhail. The sum of their ages is 110. What is Mikhail's age?

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Answer:

Mikhail is 50 years old.

Step-by-step explanation:

Let m represent how old Mikhail is.

110 = (m + 10) + m

Combine equal variables.

110 = 2m + 10

Get the variable alone by cancelling out the 10.

110 - 10 = 2m

Simplify.

100 = 2m

Divide.

m = 50

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